Home / 15,206.59-20,985.18-8,492.80

Finding the Fourth Proportional to 15,206.59, 20,985.18 and 8,492.80

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Solution

The fourth proportional to 15,206.59, 20,985.18 and 8,492.80 is: 11,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,206.59 : 20,985.18 = 8,492.80 : x
  2. Step 2: Convert to fraction form
    15,206.59/20,985.18 = 8,492.80/x
  3. Step 3: Cross multiply
    15,206.59x = 20,985.18 × 8,492.80
  4. Step 4: Simplify right side
    15,206.59x = 178,222,891.74
  5. Step 5: Solve for x
    x = 178,222,891.74/15,206.59
  6. Step 6: Final answer
    x = 11,720.11

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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.