Home / 13,512.64-18,647.18-7,545.72

Finding the Fourth Proportional to 13,512.64, 18,647.18 and 7,545.72

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Solution

The fourth proportional to 13,512.64, 18,647.18 and 7,545.72 is: 10,412.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.64 : 18,647.18 = 7,545.72 : x
  2. Step 2: Convert to fraction form
    13,512.64/18,647.18 = 7,545.72/x
  3. Step 3: Cross multiply
    13,512.64x = 18,647.18 × 7,545.72
  4. Step 4: Simplify right side
    13,512.64x = 140,706,399.07
  5. Step 5: Solve for x
    x = 140,706,399.07/13,512.64
  6. Step 6: Final answer
    x = 10,412.95

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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.