Home / 19,314.28-28,990.14-9,326.06

Finding the Fourth Proportional to 19,314.28, 28,990.14 and 9,326.06

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Solution

The fourth proportional to 19,314.28, 28,990.14 and 9,326.06 is: 13,998.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.28 : 28,990.14 = 9,326.06 : x
  2. Step 2: Convert to fraction form
    19,314.28/28,990.14 = 9,326.06/x
  3. Step 3: Cross multiply
    19,314.28x = 28,990.14 × 9,326.06
  4. Step 4: Simplify right side
    19,314.28x = 270,363,857.52
  5. Step 5: Solve for x
    x = 270,363,857.52/19,314.28
  6. Step 6: Final answer
    x = 13,998.13

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1.5x scale

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.