Home / 15,544.74-21,451.54-8,471.17

Finding the Fourth Proportional to 15,544.74, 21,451.54 and 8,471.17

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Solution

The fourth proportional to 15,544.74, 21,451.54 and 8,471.17 is: 11,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.74 : 21,451.54 = 8,471.17 : x
  2. Step 2: Convert to fraction form
    15,544.74/21,451.54 = 8,471.17/x
  3. Step 3: Cross multiply
    15,544.74x = 21,451.54 × 8,471.17
  4. Step 4: Simplify right side
    15,544.74x = 181,719,642.10
  5. Step 5: Solve for x
    x = 181,719,642.10/15,544.74
  6. Step 6: Final answer
    x = 11,690.10

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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.