Home / 11,317.02-15,616.15-6,280.75

Finding the Fourth Proportional to 11,317.02, 15,616.15 and 6,280.75

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Solution

The fourth proportional to 11,317.02, 15,616.15 and 6,280.75 is: 8,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.02 : 15,616.15 = 6,280.75 : x
  2. Step 2: Convert to fraction form
    11,317.02/15,616.15 = 6,280.75/x
  3. Step 3: Cross multiply
    11,317.02x = 15,616.15 × 6,280.75
  4. Step 4: Simplify right side
    11,317.02x = 98,081,134.11
  5. Step 5: Solve for x
    x = 98,081,134.11/11,317.02
  6. Step 6: Final answer
    x = 8,666.69

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Half scale
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Double scale
Find fourth proportional to 11,318.02, 15,617.53 and 6,281.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.