Home / 15,113.92-20,851.23-8,739.34

Finding the Fourth Proportional to 15,113.92, 20,851.23 and 8,739.34

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Solution

The fourth proportional to 15,113.92, 20,851.23 and 8,739.34 is: 12,056.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.92 : 20,851.23 = 8,739.34 : x
  2. Step 2: Convert to fraction form
    15,113.92/20,851.23 = 8,739.34/x
  3. Step 3: Cross multiply
    15,113.92x = 20,851.23 × 8,739.34
  4. Step 4: Simplify right side
    15,113.92x = 182,225,884.13
  5. Step 5: Solve for x
    x = 182,225,884.13/15,113.92
  6. Step 6: Final answer
    x = 12,056.83

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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.