Home / 13,287.43-18,322.77-9,924.99

Finding the Fourth Proportional to 13,287.43, 18,322.77 and 9,924.99

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Solution

The fourth proportional to 13,287.43, 18,322.77 and 9,924.99 is: 13,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.43 : 18,322.77 = 9,924.99 : x
  2. Step 2: Convert to fraction form
    13,287.43/18,322.77 = 9,924.99/x
  3. Step 3: Cross multiply
    13,287.43x = 18,322.77 × 9,924.99
  4. Step 4: Simplify right side
    13,287.43x = 181,853,309.02
  5. Step 5: Solve for x
    x = 181,853,309.02/13,287.43
  6. Step 6: Final answer
    x = 13,686.12

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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.