Home / 15,461.02-21,336.15-8,387.02

Finding the Fourth Proportional to 15,461.02, 21,336.15 and 8,387.02

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Solution

The fourth proportional to 15,461.02, 21,336.15 and 8,387.02 is: 11,574.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.02 : 21,336.15 = 8,387.02 : x
  2. Step 2: Convert to fraction form
    15,461.02/21,336.15 = 8,387.02/x
  3. Step 3: Cross multiply
    15,461.02x = 21,336.15 × 8,387.02
  4. Step 4: Simplify right side
    15,461.02x = 178,946,716.77
  5. Step 5: Solve for x
    x = 178,946,716.77/15,461.02
  6. Step 6: Final answer
    x = 11,574.06

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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.