Home / 14,569.49-20,105.80-8,281.86

Finding the Fourth Proportional to 14,569.49, 20,105.80 and 8,281.86

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Solution

The fourth proportional to 14,569.49, 20,105.80 and 8,281.86 is: 11,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,569.49 : 20,105.80 = 8,281.86 : x
  2. Step 2: Convert to fraction form
    14,569.49/20,105.80 = 8,281.86/x
  3. Step 3: Cross multiply
    14,569.49x = 20,105.80 × 8,281.86
  4. Step 4: Simplify right side
    14,569.49x = 166,513,400.08
  5. Step 5: Solve for x
    x = 166,513,400.08/14,569.49
  6. Step 6: Final answer
    x = 11,428.91

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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.