Home / 14,239.04-21,358.60-8,387.60

Finding the Fourth Proportional to 14,239.04, 21,358.60 and 8,387.60

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Solution

The fourth proportional to 14,239.04, 21,358.60 and 8,387.60 is: 12,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.04 : 21,358.60 = 8,387.60 : x
  2. Step 2: Convert to fraction form
    14,239.04/21,358.60 = 8,387.60/x
  3. Step 3: Cross multiply
    14,239.04x = 21,358.60 × 8,387.60
  4. Step 4: Simplify right side
    14,239.04x = 179,147,393.36
  5. Step 5: Solve for x
    x = 179,147,393.36/14,239.04
  6. Step 6: Final answer
    x = 12,581.42

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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.