Home / 13,437.46-18,545.07-7,772.50

Finding the Fourth Proportional to 13,437.46, 18,545.07 and 7,772.50

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Solution

The fourth proportional to 13,437.46, 18,545.07 and 7,772.50 is: 10,726.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.46 : 18,545.07 = 7,772.50 : x
  2. Step 2: Convert to fraction form
    13,437.46/18,545.07 = 7,772.50/x
  3. Step 3: Cross multiply
    13,437.46x = 18,545.07 × 7,772.50
  4. Step 4: Simplify right side
    13,437.46x = 144,141,556.58
  5. Step 5: Solve for x
    x = 144,141,556.58/13,437.46
  6. Step 6: Final answer
    x = 10,726.85

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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.