Home / 14,387.17-21,580.71-6,480.43

Finding the Fourth Proportional to 14,387.17, 21,580.71 and 6,480.43

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Solution

The fourth proportional to 14,387.17, 21,580.71 and 6,480.43 is: 9,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.17 : 21,580.71 = 6,480.43 : x
  2. Step 2: Convert to fraction form
    14,387.17/21,580.71 = 6,480.43/x
  3. Step 3: Cross multiply
    14,387.17x = 21,580.71 × 6,480.43
  4. Step 4: Simplify right side
    14,387.17x = 139,852,280.51
  5. Step 5: Solve for x
    x = 139,852,280.51/14,387.17
  6. Step 6: Final answer
    x = 9,720.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.