Home / 15,461.02-21,336.32-8,387.44

Finding the Fourth Proportional to 15,461.02, 21,336.32 and 8,387.44

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Solution

The fourth proportional to 15,461.02, 21,336.32 and 8,387.44 is: 11,574.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.02 : 21,336.32 = 8,387.44 : x
  2. Step 2: Convert to fraction form
    15,461.02/21,336.32 = 8,387.44/x
  3. Step 3: Cross multiply
    15,461.02x = 21,336.32 × 8,387.44
  4. Step 4: Simplify right side
    15,461.02x = 178,957,103.82
  5. Step 5: Solve for x
    x = 178,957,103.82/15,461.02
  6. Step 6: Final answer
    x = 11,574.73

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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.