Home / 15,525.66-21,400.44-10,488.30

Finding the Fourth Proportional to 15,525.66, 21,400.44 and 10,488.30

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Solution

The fourth proportional to 15,525.66, 21,400.44 and 10,488.30 is: 14,456.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.66 : 21,400.44 = 10,488.30 : x
  2. Step 2: Convert to fraction form
    15,525.66/21,400.44 = 10,488.30/x
  3. Step 3: Cross multiply
    15,525.66x = 21,400.44 × 10,488.30
  4. Step 4: Simplify right side
    15,525.66x = 224,454,234.85
  5. Step 5: Solve for x
    x = 224,454,234.85/15,525.66
  6. Step 6: Final answer
    x = 14,456.99

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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.