Home / 13,257.78-19,868.04-10,472.28

Finding the Fourth Proportional to 13,257.78, 19,868.04 and 10,472.28

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Solution

The fourth proportional to 13,257.78, 19,868.04 and 10,472.28 is: 15,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.78 : 19,868.04 = 10,472.28 : x
  2. Step 2: Convert to fraction form
    13,257.78/19,868.04 = 10,472.28/x
  3. Step 3: Cross multiply
    13,257.78x = 19,868.04 × 10,472.28
  4. Step 4: Simplify right side
    13,257.78x = 208,063,677.93
  5. Step 5: Solve for x
    x = 208,063,677.93/13,257.78
  6. Step 6: Final answer
    x = 15,693.70

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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.