Home / 8,679.48-13,003.56-7,301.40

Finding the Fourth Proportional to 8,679.48, 13,003.56 and 7,301.40

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Solution

The fourth proportional to 8,679.48, 13,003.56 and 7,301.40 is: 10,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.48 : 13,003.56 = 7,301.40 : x
  2. Step 2: Convert to fraction form
    8,679.48/13,003.56 = 7,301.40/x
  3. Step 3: Cross multiply
    8,679.48x = 13,003.56 × 7,301.40
  4. Step 4: Simplify right side
    8,679.48x = 94,944,192.98
  5. Step 5: Solve for x
    x = 94,944,192.98/8,679.48
  6. Step 6: Final answer
    x = 10,938.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.