Home / 15,276.22-21,082.02-8,561.46

Finding the Fourth Proportional to 15,276.22, 21,082.02 and 8,561.46

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Solution

The fourth proportional to 15,276.22, 21,082.02 and 8,561.46 is: 11,815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,276.22 : 21,082.02 = 8,561.46 : x
  2. Step 2: Convert to fraction form
    15,276.22/21,082.02 = 8,561.46/x
  3. Step 3: Cross multiply
    15,276.22x = 21,082.02 × 8,561.46
  4. Step 4: Simplify right side
    15,276.22x = 180,492,870.95
  5. Step 5: Solve for x
    x = 180,492,870.95/15,276.22
  6. Step 6: Final answer
    x = 11,815.28

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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.