Home / 8,775.48-13,148.70-5,305.56

Finding the Fourth Proportional to 8,775.48, 13,148.70 and 5,305.56

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Solution

The fourth proportional to 8,775.48, 13,148.70 and 5,305.56 is: 7,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.48 : 13,148.70 = 5,305.56 : x
  2. Step 2: Convert to fraction form
    8,775.48/13,148.70 = 5,305.56/x
  3. Step 3: Cross multiply
    8,775.48x = 13,148.70 × 5,305.56
  4. Step 4: Simplify right side
    8,775.48x = 69,761,216.77
  5. Step 5: Solve for x
    x = 69,761,216.77/8,775.48
  6. Step 6: Final answer
    x = 7,949.56

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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.