Home / 15,375.17-23,075.30-7,981.74

Finding the Fourth Proportional to 15,375.17, 23,075.30 and 7,981.74

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Solution

The fourth proportional to 15,375.17, 23,075.30 and 7,981.74 is: 11,979.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.17 : 23,075.30 = 7,981.74 : x
  2. Step 2: Convert to fraction form
    15,375.17/23,075.30 = 7,981.74/x
  3. Step 3: Cross multiply
    15,375.17x = 23,075.30 × 7,981.74
  4. Step 4: Simplify right side
    15,375.17x = 184,181,045.02
  5. Step 5: Solve for x
    x = 184,181,045.02/15,375.17
  6. Step 6: Final answer
    x = 11,979.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.