Home / 10,930.58-15,088.50-6,897.15

Finding the Fourth Proportional to 10,930.58, 15,088.50 and 6,897.15

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Solution

The fourth proportional to 10,930.58, 15,088.50 and 6,897.15 is: 9,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.58 : 15,088.50 = 6,897.15 : x
  2. Step 2: Convert to fraction form
    10,930.58/15,088.50 = 6,897.15/x
  3. Step 3: Cross multiply
    10,930.58x = 15,088.50 × 6,897.15
  4. Step 4: Simplify right side
    10,930.58x = 104,067,647.78
  5. Step 5: Solve for x
    x = 104,067,647.78/10,930.58
  6. Step 6: Final answer
    x = 9,520.78

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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.