Home / 13,134.06-18,123.21-7,545.06

Finding the Fourth Proportional to 13,134.06, 18,123.21 and 7,545.06

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Solution

The fourth proportional to 13,134.06, 18,123.21 and 7,545.06 is: 10,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.06 : 18,123.21 = 7,545.06 : x
  2. Step 2: Convert to fraction form
    13,134.06/18,123.21 = 7,545.06/x
  3. Step 3: Cross multiply
    13,134.06x = 18,123.21 × 7,545.06
  4. Step 4: Simplify right side
    13,134.06x = 136,740,706.84
  5. Step 5: Solve for x
    x = 136,740,706.84/13,134.06
  6. Step 6: Final answer
    x = 10,411.15

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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.