Home / 15,124.12-20,869.86-14,009.56

Finding the Fourth Proportional to 15,124.12, 20,869.86 and 14,009.56

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Solution

The fourth proportional to 15,124.12, 20,869.86 and 14,009.56 is: 19,331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,124.12 : 20,869.86 = 14,009.56 : x
  2. Step 2: Convert to fraction form
    15,124.12/20,869.86 = 14,009.56/x
  3. Step 3: Cross multiply
    15,124.12x = 20,869.86 × 14,009.56
  4. Step 4: Simplify right side
    15,124.12x = 292,377,555.86
  5. Step 5: Solve for x
    x = 292,377,555.86/15,124.12
  6. Step 6: Final answer
    x = 19,331.87

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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.