Home / 15,343.95-21,175.02-8,538.06

Finding the Fourth Proportional to 15,343.95, 21,175.02 and 8,538.06

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Solution

The fourth proportional to 15,343.95, 21,175.02 and 8,538.06 is: 11,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.95 : 21,175.02 = 8,538.06 : x
  2. Step 2: Convert to fraction form
    15,343.95/21,175.02 = 8,538.06/x
  3. Step 3: Cross multiply
    15,343.95x = 21,175.02 × 8,538.06
  4. Step 4: Simplify right side
    15,343.95x = 180,793,591.26
  5. Step 5: Solve for x
    x = 180,793,591.26/15,343.95
  6. Step 6: Final answer
    x = 11,782.73

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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.