Home / 10,358.20-15,537.30-7,766.20

Finding the Fourth Proportional to 10,358.20, 15,537.30 and 7,766.20

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Solution

The fourth proportional to 10,358.20, 15,537.30 and 7,766.20 is: 11,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.20 : 15,537.30 = 7,766.20 : x
  2. Step 2: Convert to fraction form
    10,358.20/15,537.30 = 7,766.20/x
  3. Step 3: Cross multiply
    10,358.20x = 15,537.30 × 7,766.20
  4. Step 4: Simplify right side
    10,358.20x = 120,665,779.26
  5. Step 5: Solve for x
    x = 120,665,779.26/10,358.20
  6. Step 6: Final answer
    x = 11,649.30

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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.