Home / 15,654.02-21,602.58-8,580.90

Finding the Fourth Proportional to 15,654.02, 21,602.58 and 8,580.90

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Solution

The fourth proportional to 15,654.02, 21,602.58 and 8,580.90 is: 11,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.02 : 21,602.58 = 8,580.90 : x
  2. Step 2: Convert to fraction form
    15,654.02/21,602.58 = 8,580.90/x
  3. Step 3: Cross multiply
    15,654.02x = 21,602.58 × 8,580.90
  4. Step 4: Simplify right side
    15,654.02x = 185,369,578.72
  5. Step 5: Solve for x
    x = 185,369,578.72/15,654.02
  6. Step 6: Final answer
    x = 11,841.66

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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.