Home / 15,339.55-21,168.67-8,625.46

Finding the Fourth Proportional to 15,339.55, 21,168.67 and 8,625.46

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Solution

The fourth proportional to 15,339.55, 21,168.67 and 8,625.46 is: 11,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.55 : 21,168.67 = 8,625.46 : x
  2. Step 2: Convert to fraction form
    15,339.55/21,168.67 = 8,625.46/x
  3. Step 3: Cross multiply
    15,339.55x = 21,168.67 × 8,625.46
  4. Step 4: Simplify right side
    15,339.55x = 182,589,516.34
  5. Step 5: Solve for x
    x = 182,589,516.34/15,339.55
  6. Step 6: Final answer
    x = 11,903.19

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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.