Home / 8,302.20-12,515.46-7,752.24

Finding the Fourth Proportional to 8,302.20, 12,515.46 and 7,752.24

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Solution

The fourth proportional to 8,302.20, 12,515.46 and 7,752.24 is: 11,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.20 : 12,515.46 = 7,752.24 : x
  2. Step 2: Convert to fraction form
    8,302.20/12,515.46 = 7,752.24/x
  3. Step 3: Cross multiply
    8,302.20x = 12,515.46 × 7,752.24
  4. Step 4: Simplify right side
    8,302.20x = 97,022,849.63
  5. Step 5: Solve for x
    x = 97,022,849.63/8,302.20
  6. Step 6: Final answer
    x = 11,686.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.