Home / 8,148.15-11,243.05-5,314.77

Finding the Fourth Proportional to 8,148.15, 11,243.05 and 5,314.77

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Solution

The fourth proportional to 8,148.15, 11,243.05 and 5,314.77 is: 7,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.15 : 11,243.05 = 5,314.77 : x
  2. Step 2: Convert to fraction form
    8,148.15/11,243.05 = 5,314.77/x
  3. Step 3: Cross multiply
    8,148.15x = 11,243.05 × 5,314.77
  4. Step 4: Simplify right side
    8,148.15x = 59,754,224.85
  5. Step 5: Solve for x
    x = 59,754,224.85/8,148.15
  6. Step 6: Final answer
    x = 7,333.47

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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.