Home / 7,928.24-10,938.48-5,276.09

Finding the Fourth Proportional to 7,928.24, 10,938.48 and 5,276.09

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Solution

The fourth proportional to 7,928.24, 10,938.48 and 5,276.09 is: 7,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.24 : 10,938.48 = 5,276.09 : x
  2. Step 2: Convert to fraction form
    7,928.24/10,938.48 = 5,276.09/x
  3. Step 3: Cross multiply
    7,928.24x = 10,938.48 × 5,276.09
  4. Step 4: Simplify right side
    7,928.24x = 57,712,350.25
  5. Step 5: Solve for x
    x = 57,712,350.25/7,928.24
  6. Step 6: Final answer
    x = 7,279.34

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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.