Home / 15,525.58-21,424.75-8,451.85

Finding the Fourth Proportional to 15,525.58, 21,424.75 and 8,451.85

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Solution

The fourth proportional to 15,525.58, 21,424.75 and 8,451.85 is: 11,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.58 : 21,424.75 = 8,451.85 : x
  2. Step 2: Convert to fraction form
    15,525.58/21,424.75 = 8,451.85/x
  3. Step 3: Cross multiply
    15,525.58x = 21,424.75 × 8,451.85
  4. Step 4: Simplify right side
    15,525.58x = 181,078,773.29
  5. Step 5: Solve for x
    x = 181,078,773.29/15,525.58
  6. Step 6: Final answer
    x = 11,663.25

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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.