Home / 15,524.60-21,424.32-8,451.08

Finding the Fourth Proportional to 15,524.60, 21,424.32 and 8,451.08

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Solution

The fourth proportional to 15,524.60, 21,424.32 and 8,451.08 is: 11,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,524.60 : 21,424.32 = 8,451.08 : x
  2. Step 2: Convert to fraction form
    15,524.60/21,424.32 = 8,451.08/x
  3. Step 3: Cross multiply
    15,524.60x = 21,424.32 × 8,451.08
  4. Step 4: Simplify right side
    15,524.60x = 181,058,642.27
  5. Step 5: Solve for x
    x = 181,058,642.27/15,524.60
  6. Step 6: Final answer
    x = 11,662.69

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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.