Home / 10,279.10-15,425.85-6,590.30

Finding the Fourth Proportional to 10,279.10, 15,425.85 and 6,590.30

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Solution

The fourth proportional to 10,279.10, 15,425.85 and 6,590.30 is: 9,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.10 : 15,425.85 = 6,590.30 : x
  2. Step 2: Convert to fraction form
    10,279.10/15,425.85 = 6,590.30/x
  3. Step 3: Cross multiply
    10,279.10x = 15,425.85 × 6,590.30
  4. Step 4: Simplify right side
    10,279.10x = 101,660,979.26
  5. Step 5: Solve for x
    x = 101,660,979.26/10,279.10
  6. Step 6: Final answer
    x = 9,890.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.