Home / 14,555.72-20,105.46-10,785.80

Finding the Fourth Proportional to 14,555.72, 20,105.46 and 10,785.80

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Solution

The fourth proportional to 14,555.72, 20,105.46 and 10,785.80 is: 14,898.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,555.72 : 20,105.46 = 10,785.80 : x
  2. Step 2: Convert to fraction form
    14,555.72/20,105.46 = 10,785.80/x
  3. Step 3: Cross multiply
    14,555.72x = 20,105.46 × 10,785.80
  4. Step 4: Simplify right side
    14,555.72x = 216,853,470.47
  5. Step 5: Solve for x
    x = 216,853,470.47/14,555.72
  6. Step 6: Final answer
    x = 14,898.16

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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.