Home / 9,135.40-13,719.30-7,060.45

Finding the Fourth Proportional to 9,135.40, 13,719.30 and 7,060.45

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Solution

The fourth proportional to 9,135.40, 13,719.30 and 7,060.45 is: 10,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.40 : 13,719.30 = 7,060.45 : x
  2. Step 2: Convert to fraction form
    9,135.40/13,719.30 = 7,060.45/x
  3. Step 3: Cross multiply
    9,135.40x = 13,719.30 × 7,060.45
  4. Step 4: Simplify right side
    9,135.40x = 96,864,431.69
  5. Step 5: Solve for x
    x = 96,864,431.69/9,135.40
  6. Step 6: Final answer
    x = 10,603.20

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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.