Home / 11,337.74-15,645.28-7,090.72

Finding the Fourth Proportional to 11,337.74, 15,645.28 and 7,090.72

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Solution

The fourth proportional to 11,337.74, 15,645.28 and 7,090.72 is: 9,784.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,337.74 : 15,645.28 = 7,090.72 : x
  2. Step 2: Convert to fraction form
    11,337.74/15,645.28 = 7,090.72/x
  3. Step 3: Cross multiply
    11,337.74x = 15,645.28 × 7,090.72
  4. Step 4: Simplify right side
    11,337.74x = 110,936,299.80
  5. Step 5: Solve for x
    x = 110,936,299.80/11,337.74
  6. Step 6: Final answer
    x = 9,784.69

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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.