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Finding the Fourth Proportional to 8,359.02, 12,538.51 and 2,119.02

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Solution

The fourth proportional to 8,359.02, 12,538.51 and 2,119.02 is: 3,178.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,359.02 : 12,538.51 = 2,119.02 : x
  2. Step 2: Convert to fraction form
    8,359.02/12,538.51 = 2,119.02/x
  3. Step 3: Cross multiply
    8,359.02x = 12,538.51 × 2,119.02
  4. Step 4: Simplify right side
    8,359.02x = 26,569,280.17
  5. Step 5: Solve for x
    x = 26,569,280.17/8,359.02
  6. Step 6: Final answer
    x = 3,178.52

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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.