Home / 15,544.24-21,451.02-8,470.64

Finding the Fourth Proportional to 15,544.24, 21,451.02 and 8,470.64

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Solution

The fourth proportional to 15,544.24, 21,451.02 and 8,470.64 is: 11,689.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.24 : 21,451.02 = 8,470.64 : x
  2. Step 2: Convert to fraction form
    15,544.24/21,451.02 = 8,470.64/x
  3. Step 3: Cross multiply
    15,544.24x = 21,451.02 × 8,470.64
  4. Step 4: Simplify right side
    15,544.24x = 181,703,868.05
  5. Step 5: Solve for x
    x = 181,703,868.05/15,544.24
  6. Step 6: Final answer
    x = 11,689.47

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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.