Home / 12,318.05-17,000.33-7,013.72

Finding the Fourth Proportional to 12,318.05, 17,000.33 and 7,013.72

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Solution

The fourth proportional to 12,318.05, 17,000.33 and 7,013.72 is: 9,679.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.05 : 17,000.33 = 7,013.72 : x
  2. Step 2: Convert to fraction form
    12,318.05/17,000.33 = 7,013.72/x
  3. Step 3: Cross multiply
    12,318.05x = 17,000.33 × 7,013.72
  4. Step 4: Simplify right side
    12,318.05x = 119,235,434.46
  5. Step 5: Solve for x
    x = 119,235,434.46/12,318.05
  6. Step 6: Final answer
    x = 9,679.74

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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.