Home / 9,514.40-13,129.78-5,265.47

Finding the Fourth Proportional to 9,514.40, 13,129.78 and 5,265.47

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Solution

The fourth proportional to 9,514.40, 13,129.78 and 5,265.47 is: 7,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,514.40 : 13,129.78 = 5,265.47 : x
  2. Step 2: Convert to fraction form
    9,514.40/13,129.78 = 5,265.47/x
  3. Step 3: Cross multiply
    9,514.40x = 13,129.78 × 5,265.47
  4. Step 4: Simplify right side
    9,514.40x = 69,134,459.05
  5. Step 5: Solve for x
    x = 69,134,459.05/9,514.40
  6. Step 6: Final answer
    x = 7,266.30

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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.