Home / 14,617.29-20,155.98-9,305.31

Finding the Fourth Proportional to 14,617.29, 20,155.98 and 9,305.31

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Solution

The fourth proportional to 14,617.29, 20,155.98 and 9,305.31 is: 12,831.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,617.29 : 20,155.98 = 9,305.31 : x
  2. Step 2: Convert to fraction form
    14,617.29/20,155.98 = 9,305.31/x
  3. Step 3: Cross multiply
    14,617.29x = 20,155.98 × 9,305.31
  4. Step 4: Simplify right side
    14,617.29x = 187,557,642.25
  5. Step 5: Solve for x
    x = 187,557,642.25/14,617.29
  6. Step 6: Final answer
    x = 12,831.22

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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.