Home / 15,002.48-20,703.40-8,629.52

Finding the Fourth Proportional to 15,002.48, 20,703.40 and 8,629.52

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Solution

The fourth proportional to 15,002.48, 20,703.40 and 8,629.52 is: 11,908.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.48 : 20,703.40 = 8,629.52 : x
  2. Step 2: Convert to fraction form
    15,002.48/20,703.40 = 8,629.52/x
  3. Step 3: Cross multiply
    15,002.48x = 20,703.40 × 8,629.52
  4. Step 4: Simplify right side
    15,002.48x = 178,660,404.37
  5. Step 5: Solve for x
    x = 178,660,404.37/15,002.48
  6. Step 6: Final answer
    x = 11,908.72

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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.