Home / 13,379.49-18,463.70-7,411.55

Finding the Fourth Proportional to 13,379.49, 18,463.70 and 7,411.55

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Solution

The fourth proportional to 13,379.49, 18,463.70 and 7,411.55 is: 10,227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.49 : 18,463.70 = 7,411.55 : x
  2. Step 2: Convert to fraction form
    13,379.49/18,463.70 = 7,411.55/x
  3. Step 3: Cross multiply
    13,379.49x = 18,463.70 × 7,411.55
  4. Step 4: Simplify right side
    13,379.49x = 136,844,543.42
  5. Step 5: Solve for x
    x = 136,844,543.42/13,379.49
  6. Step 6: Final answer
    x = 10,227.93

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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.