Home / 15,214.64-20,989.71-9,545.54

Finding the Fourth Proportional to 15,214.64, 20,989.71 and 9,545.54

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Solution

The fourth proportional to 15,214.64, 20,989.71 and 9,545.54 is: 13,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,214.64 : 20,989.71 = 9,545.54 : x
  2. Step 2: Convert to fraction form
    15,214.64/20,989.71 = 9,545.54/x
  3. Step 3: Cross multiply
    15,214.64x = 20,989.71 × 9,545.54
  4. Step 4: Simplify right side
    15,214.64x = 200,358,011.44
  5. Step 5: Solve for x
    x = 200,358,011.44/15,214.64
  6. Step 6: Final answer
    x = 13,168.77

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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.