Home / 10,279.08-15,420.23-4,355.98

Finding the Fourth Proportional to 10,279.08, 15,420.23 and 4,355.98

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Solution

The fourth proportional to 10,279.08, 15,420.23 and 4,355.98 is: 6,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.08 : 15,420.23 = 4,355.98 : x
  2. Step 2: Convert to fraction form
    10,279.08/15,420.23 = 4,355.98/x
  3. Step 3: Cross multiply
    10,279.08x = 15,420.23 × 4,355.98
  4. Step 4: Simplify right side
    10,279.08x = 67,170,169.48
  5. Step 5: Solve for x
    x = 67,170,169.48/10,279.08
  6. Step 6: Final answer
    x = 6,534.65

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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.