Home / 10,884.72-15,028.11-9,703.74

Finding the Fourth Proportional to 10,884.72, 15,028.11 and 9,703.74

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Solution

The fourth proportional to 10,884.72, 15,028.11 and 9,703.74 is: 13,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,884.72 : 15,028.11 = 9,703.74 : x
  2. Step 2: Convert to fraction form
    10,884.72/15,028.11 = 9,703.74/x
  3. Step 3: Cross multiply
    10,884.72x = 15,028.11 × 9,703.74
  4. Step 4: Simplify right side
    10,884.72x = 145,828,872.13
  5. Step 5: Solve for x
    x = 145,828,872.13/10,884.72
  6. Step 6: Final answer
    x = 13,397.58

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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.