Home / 9,348.04-12,900.18-5,156.29

Finding the Fourth Proportional to 9,348.04, 12,900.18 and 5,156.29

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Solution

The fourth proportional to 9,348.04, 12,900.18 and 5,156.29 is: 7,115.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,348.04 : 12,900.18 = 5,156.29 : x
  2. Step 2: Convert to fraction form
    9,348.04/12,900.18 = 5,156.29/x
  3. Step 3: Cross multiply
    9,348.04x = 12,900.18 × 5,156.29
  4. Step 4: Simplify right side
    9,348.04x = 66,517,069.13
  5. Step 5: Solve for x
    x = 66,517,069.13/9,348.04
  6. Step 6: Final answer
    x = 7,115.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.