Home / 15,275.16-21,080.07-8,560.98

Finding the Fourth Proportional to 15,275.16, 21,080.07 and 8,560.98

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Solution

The fourth proportional to 15,275.16, 21,080.07 and 8,560.98 is: 11,814.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275.16 : 21,080.07 = 8,560.98 : x
  2. Step 2: Convert to fraction form
    15,275.16/21,080.07 = 8,560.98/x
  3. Step 3: Cross multiply
    15,275.16x = 21,080.07 × 8,560.98
  4. Step 4: Simplify right side
    15,275.16x = 180,466,057.67
  5. Step 5: Solve for x
    x = 180,466,057.67/15,275.16
  6. Step 6: Final answer
    x = 11,814.35

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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.