Home / 14,993.28-20,689.56-8,706.12

Finding the Fourth Proportional to 14,993.28, 20,689.56 and 8,706.12

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Solution

The fourth proportional to 14,993.28, 20,689.56 and 8,706.12 is: 12,013.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993.28 : 20,689.56 = 8,706.12 : x
  2. Step 2: Convert to fraction form
    14,993.28/20,689.56 = 8,706.12/x
  3. Step 3: Cross multiply
    14,993.28x = 20,689.56 × 8,706.12
  4. Step 4: Simplify right side
    14,993.28x = 180,125,792.11
  5. Step 5: Solve for x
    x = 180,125,792.11/14,993.28
  6. Step 6: Final answer
    x = 12,013.77

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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.