Home / 15,675.48-21,634.02-9,387.72

Finding the Fourth Proportional to 15,675.48, 21,634.02 and 9,387.72

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Solution

The fourth proportional to 15,675.48, 21,634.02 and 9,387.72 is: 12,956.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.48 : 21,634.02 = 9,387.72 : x
  2. Step 2: Convert to fraction form
    15,675.48/21,634.02 = 9,387.72/x
  3. Step 3: Cross multiply
    15,675.48x = 21,634.02 × 9,387.72
  4. Step 4: Simplify right side
    15,675.48x = 203,094,122.23
  5. Step 5: Solve for x
    x = 203,094,122.23/15,675.48
  6. Step 6: Final answer
    x = 12,956.17

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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.