Home / 15,391.86-21,230.18-9,426.48

Finding the Fourth Proportional to 15,391.86, 21,230.18 and 9,426.48

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Solution

The fourth proportional to 15,391.86, 21,230.18 and 9,426.48 is: 13,002.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391.86 : 21,230.18 = 9,426.48 : x
  2. Step 2: Convert to fraction form
    15,391.86/21,230.18 = 9,426.48/x
  3. Step 3: Cross multiply
    15,391.86x = 21,230.18 × 9,426.48
  4. Step 4: Simplify right side
    15,391.86x = 200,125,867.17
  5. Step 5: Solve for x
    x = 200,125,867.17/15,391.86
  6. Step 6: Final answer
    x = 13,002.06

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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.