Home / 12,909.24-19,366.29-5,123.52

Finding the Fourth Proportional to 12,909.24, 19,366.29 and 5,123.52

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Solution

The fourth proportional to 12,909.24, 19,366.29 and 5,123.52 is: 7,686.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.24 : 19,366.29 = 5,123.52 : x
  2. Step 2: Convert to fraction form
    12,909.24/19,366.29 = 5,123.52/x
  3. Step 3: Cross multiply
    12,909.24x = 19,366.29 × 5,123.52
  4. Step 4: Simplify right side
    12,909.24x = 99,223,574.14
  5. Step 5: Solve for x
    x = 99,223,574.14/12,909.24
  6. Step 6: Final answer
    x = 7,686.24

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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.