Home / 11,317.72-15,619.02-6,282.40

Finding the Fourth Proportional to 11,317.72, 15,619.02 and 6,282.40

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Solution

The fourth proportional to 11,317.72, 15,619.02 and 6,282.40 is: 8,670.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.72 : 15,619.02 = 6,282.40 : x
  2. Step 2: Convert to fraction form
    11,317.72/15,619.02 = 6,282.40/x
  3. Step 3: Cross multiply
    11,317.72x = 15,619.02 × 6,282.40
  4. Step 4: Simplify right side
    11,317.72x = 98,124,931.25
  5. Step 5: Solve for x
    x = 98,124,931.25/11,317.72
  6. Step 6: Final answer
    x = 8,670.03

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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.