Home / 13,562.07-18,712.92-7,897.74

Finding the Fourth Proportional to 13,562.07, 18,712.92 and 7,897.74

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Solution

The fourth proportional to 13,562.07, 18,712.92 and 7,897.74 is: 10,897.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.07 : 18,712.92 = 7,897.74 : x
  2. Step 2: Convert to fraction form
    13,562.07/18,712.92 = 7,897.74/x
  3. Step 3: Cross multiply
    13,562.07x = 18,712.92 × 7,897.74
  4. Step 4: Simplify right side
    13,562.07x = 147,789,776.80
  5. Step 5: Solve for x
    x = 147,789,776.80/13,562.07
  6. Step 6: Final answer
    x = 10,897.29

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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.