Home / 8,279.02-12,417.23-6,882.40

Finding the Fourth Proportional to 8,279.02, 12,417.23 and 6,882.40

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Solution

The fourth proportional to 8,279.02, 12,417.23 and 6,882.40 is: 10,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.02 : 12,417.23 = 6,882.40 : x
  2. Step 2: Convert to fraction form
    8,279.02/12,417.23 = 6,882.40/x
  3. Step 3: Cross multiply
    8,279.02x = 12,417.23 × 6,882.40
  4. Step 4: Simplify right side
    8,279.02x = 85,460,343.75
  5. Step 5: Solve for x
    x = 85,460,343.75/8,279.02
  6. Step 6: Final answer
    x = 10,322.52

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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.