Home / 11,331.26-15,626.76-7,501.28

Finding the Fourth Proportional to 11,331.26, 15,626.76 and 7,501.28

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Solution

The fourth proportional to 11,331.26, 15,626.76 and 7,501.28 is: 10,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.26 : 15,626.76 = 7,501.28 : x
  2. Step 2: Convert to fraction form
    11,331.26/15,626.76 = 7,501.28/x
  3. Step 3: Cross multiply
    11,331.26x = 15,626.76 × 7,501.28
  4. Step 4: Simplify right side
    11,331.26x = 117,220,702.25
  5. Step 5: Solve for x
    x = 117,220,702.25/11,331.26
  6. Step 6: Final answer
    x = 10,344.90

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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.