Home / 12,346.18-17,037.30-7,042.70

Finding the Fourth Proportional to 12,346.18, 17,037.30 and 7,042.70

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Solution

The fourth proportional to 12,346.18, 17,037.30 and 7,042.70 is: 9,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.18 : 17,037.30 = 7,042.70 : x
  2. Step 2: Convert to fraction form
    12,346.18/17,037.30 = 7,042.70/x
  3. Step 3: Cross multiply
    12,346.18x = 17,037.30 × 7,042.70
  4. Step 4: Simplify right side
    12,346.18x = 119,988,592.71
  5. Step 5: Solve for x
    x = 119,988,592.71/12,346.18
  6. Step 6: Final answer
    x = 9,718.68

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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.