Home / 14,671.86-20,251.74-9,898.70

Finding the Fourth Proportional to 14,671.86, 20,251.74 and 9,898.70

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Solution

The fourth proportional to 14,671.86, 20,251.74 and 9,898.70 is: 13,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,671.86 : 20,251.74 = 9,898.70 : x
  2. Step 2: Convert to fraction form
    14,671.86/20,251.74 = 9,898.70/x
  3. Step 3: Cross multiply
    14,671.86x = 20,251.74 × 9,898.70
  4. Step 4: Simplify right side
    14,671.86x = 200,465,898.74
  5. Step 5: Solve for x
    x = 200,465,898.74/14,671.86
  6. Step 6: Final answer
    x = 13,663.29

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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.