Home / 15,544.60-21,451.57-8,471.07

Finding the Fourth Proportional to 15,544.60, 21,451.57 and 8,471.07

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Solution

The fourth proportional to 15,544.60, 21,451.57 and 8,471.07 is: 11,690.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.60 : 21,451.57 = 8,471.07 : x
  2. Step 2: Convert to fraction form
    15,544.60/21,451.57 = 8,471.07/x
  3. Step 3: Cross multiply
    15,544.60x = 21,451.57 × 8,471.07
  4. Step 4: Simplify right side
    15,544.60x = 181,717,729.90
  5. Step 5: Solve for x
    x = 181,717,729.90/15,544.60
  6. Step 6: Final answer
    x = 11,690.09

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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.