Home / 13,124.28-19,669.80-5,726.76

Finding the Fourth Proportional to 13,124.28, 19,669.80 and 5,726.76

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Solution

The fourth proportional to 13,124.28, 19,669.80 and 5,726.76 is: 8,582.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.28 : 19,669.80 = 5,726.76 : x
  2. Step 2: Convert to fraction form
    13,124.28/19,669.80 = 5,726.76/x
  3. Step 3: Cross multiply
    13,124.28x = 19,669.80 × 5,726.76
  4. Step 4: Simplify right side
    13,124.28x = 112,644,223.85
  5. Step 5: Solve for x
    x = 112,644,223.85/13,124.28
  6. Step 6: Final answer
    x = 8,582.89

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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.