Home / 15,117.55-20,835.11-12,294.27

Finding the Fourth Proportional to 15,117.55, 20,835.11 and 12,294.27

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Solution

The fourth proportional to 15,117.55, 20,835.11 and 12,294.27 is: 16,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.55 : 20,835.11 = 12,294.27 : x
  2. Step 2: Convert to fraction form
    15,117.55/20,835.11 = 12,294.27/x
  3. Step 3: Cross multiply
    15,117.55x = 20,835.11 × 12,294.27
  4. Step 4: Simplify right side
    15,117.55x = 256,152,498.56
  5. Step 5: Solve for x
    x = 256,152,498.56/15,117.55
  6. Step 6: Final answer
    x = 16,944.05

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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.