Home / 11,381.04-15,705.36-6,345.18

Finding the Fourth Proportional to 11,381.04, 15,705.36 and 6,345.18

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Solution

The fourth proportional to 11,381.04, 15,705.36 and 6,345.18 is: 8,756.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.04 : 15,705.36 = 6,345.18 : x
  2. Step 2: Convert to fraction form
    11,381.04/15,705.36 = 6,345.18/x
  3. Step 3: Cross multiply
    11,381.04x = 15,705.36 × 6,345.18
  4. Step 4: Simplify right side
    11,381.04x = 99,653,336.16
  5. Step 5: Solve for x
    x = 99,653,336.16/11,381.04
  6. Step 6: Final answer
    x = 8,756.08

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Half scale
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Double scale
Find fourth proportional to 11,382.04, 15,706.74 and 6,346.18
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.