Home / 12,423.17-17,142.93-7,317.87

Finding the Fourth Proportional to 12,423.17, 17,142.93 and 7,317.87

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Solution

The fourth proportional to 12,423.17, 17,142.93 and 7,317.87 is: 10,098.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.17 : 17,142.93 = 7,317.87 : x
  2. Step 2: Convert to fraction form
    12,423.17/17,142.93 = 7,317.87/x
  3. Step 3: Cross multiply
    12,423.17x = 17,142.93 × 7,317.87
  4. Step 4: Simplify right side
    12,423.17x = 125,449,733.16
  5. Step 5: Solve for x
    x = 125,449,733.16/12,423.17
  6. Step 6: Final answer
    x = 10,098.05

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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.