Home / 15,532.46-21,435.02-8,458.88

Finding the Fourth Proportional to 15,532.46, 21,435.02 and 8,458.88

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Solution

The fourth proportional to 15,532.46, 21,435.02 and 8,458.88 is: 11,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.46 : 21,435.02 = 8,458.88 : x
  2. Step 2: Convert to fraction form
    15,532.46/21,435.02 = 8,458.88/x
  3. Step 3: Cross multiply
    15,532.46x = 21,435.02 × 8,458.88
  4. Step 4: Simplify right side
    15,532.46x = 181,316,144.23
  5. Step 5: Solve for x
    x = 181,316,144.23/15,532.46
  6. Step 6: Final answer
    x = 11,673.37

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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.