Home / 13,606.48-20,407.68-6,488.92

Finding the Fourth Proportional to 13,606.48, 20,407.68 and 6,488.92

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Solution

The fourth proportional to 13,606.48, 20,407.68 and 6,488.92 is: 9,732.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.48 : 20,407.68 = 6,488.92 : x
  2. Step 2: Convert to fraction form
    13,606.48/20,407.68 = 6,488.92/x
  3. Step 3: Cross multiply
    13,606.48x = 20,407.68 × 6,488.92
  4. Step 4: Simplify right side
    13,606.48x = 132,423,802.91
  5. Step 5: Solve for x
    x = 132,423,802.91/13,606.48
  6. Step 6: Final answer
    x = 9,732.41

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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.