Home / 14,989.43-20,685.12-8,275.26

Finding the Fourth Proportional to 14,989.43, 20,685.12 and 8,275.26

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Solution

The fourth proportional to 14,989.43, 20,685.12 and 8,275.26 is: 11,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.43 : 20,685.12 = 8,275.26 : x
  2. Step 2: Convert to fraction form
    14,989.43/20,685.12 = 8,275.26/x
  3. Step 3: Cross multiply
    14,989.43x = 20,685.12 × 8,275.26
  4. Step 4: Simplify right side
    14,989.43x = 171,174,746.13
  5. Step 5: Solve for x
    x = 171,174,746.13/14,989.43
  6. Step 6: Final answer
    x = 11,419.70

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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.