Home / 9,430.90-13,014.07-5,239.15

Finding the Fourth Proportional to 9,430.90, 13,014.07 and 5,239.15

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Solution

The fourth proportional to 9,430.90, 13,014.07 and 5,239.15 is: 7,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,430.90 : 13,014.07 = 5,239.15 : x
  2. Step 2: Convert to fraction form
    9,430.90/13,014.07 = 5,239.15/x
  3. Step 3: Cross multiply
    9,430.90x = 13,014.07 × 5,239.15
  4. Step 4: Simplify right side
    9,430.90x = 68,182,619.21
  5. Step 5: Solve for x
    x = 68,182,619.21/9,430.90
  6. Step 6: Final answer
    x = 7,229.71

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Half scale
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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.