Home / 12,614.40-18,918.56-5,590.52

Finding the Fourth Proportional to 12,614.40, 18,918.56 and 5,590.52

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Solution

The fourth proportional to 12,614.40, 18,918.56 and 5,590.52 is: 8,384.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,614.40 : 18,918.56 = 5,590.52 : x
  2. Step 2: Convert to fraction form
    12,614.40/18,918.56 = 5,590.52/x
  3. Step 3: Cross multiply
    12,614.40x = 18,918.56 × 5,590.52
  4. Step 4: Simplify right side
    12,614.40x = 105,764,588.05
  5. Step 5: Solve for x
    x = 105,764,588.05/12,614.40
  6. Step 6: Final answer
    x = 8,384.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.