Home / 15,339.21-21,168.14-8,624.90

Finding the Fourth Proportional to 15,339.21, 21,168.14 and 8,624.90

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Solution

The fourth proportional to 15,339.21, 21,168.14 and 8,624.90 is: 11,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.21 : 21,168.14 = 8,624.90 : x
  2. Step 2: Convert to fraction form
    15,339.21/21,168.14 = 8,624.90/x
  3. Step 3: Cross multiply
    15,339.21x = 21,168.14 × 8,624.90
  4. Step 4: Simplify right side
    15,339.21x = 182,572,941.72
  5. Step 5: Solve for x
    x = 182,572,941.72/15,339.21
  6. Step 6: Final answer
    x = 11,902.37

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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.