Home / 10,147.20-14,041.44-8,652.72

Finding the Fourth Proportional to 10,147.20, 14,041.44 and 8,652.72

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Solution

The fourth proportional to 10,147.20, 14,041.44 and 8,652.72 is: 11,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.20 : 14,041.44 = 8,652.72 : x
  2. Step 2: Convert to fraction form
    10,147.20/14,041.44 = 8,652.72/x
  3. Step 3: Cross multiply
    10,147.20x = 14,041.44 × 8,652.72
  4. Step 4: Simplify right side
    10,147.20x = 121,496,648.72
  5. Step 5: Solve for x
    x = 121,496,648.72/10,147.20
  6. Step 6: Final answer
    x = 11,973.42

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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.