Home / 15,288.45-21,095.10-9,237.44

Finding the Fourth Proportional to 15,288.45, 21,095.10 and 9,237.44

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Solution

The fourth proportional to 15,288.45, 21,095.10 and 9,237.44 is: 12,745.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.45 : 21,095.10 = 9,237.44 : x
  2. Step 2: Convert to fraction form
    15,288.45/21,095.10 = 9,237.44/x
  3. Step 3: Cross multiply
    15,288.45x = 21,095.10 × 9,237.44
  4. Step 4: Simplify right side
    15,288.45x = 194,864,773.28
  5. Step 5: Solve for x
    x = 194,864,773.28/15,288.45
  6. Step 6: Final answer
    x = 12,745.88

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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.