Home / 15,474.29-21,358.04-9,816.85

Finding the Fourth Proportional to 15,474.29, 21,358.04 and 9,816.85

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Solution

The fourth proportional to 15,474.29, 21,358.04 and 9,816.85 is: 13,549.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.29 : 21,358.04 = 9,816.85 : x
  2. Step 2: Convert to fraction form
    15,474.29/21,358.04 = 9,816.85/x
  3. Step 3: Cross multiply
    15,474.29x = 21,358.04 × 9,816.85
  4. Step 4: Simplify right side
    15,474.29x = 209,668,572.49
  5. Step 5: Solve for x
    x = 209,668,572.49/15,474.29
  6. Step 6: Final answer
    x = 13,549.48

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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.