Home / 8,319.70-11,483.12-5,487.58

Finding the Fourth Proportional to 8,319.70, 11,483.12 and 5,487.58

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Solution

The fourth proportional to 8,319.70, 11,483.12 and 5,487.58 is: 7,574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.70 : 11,483.12 = 5,487.58 : x
  2. Step 2: Convert to fraction form
    8,319.70/11,483.12 = 5,487.58/x
  3. Step 3: Cross multiply
    8,319.70x = 11,483.12 × 5,487.58
  4. Step 4: Simplify right side
    8,319.70x = 63,014,454.80
  5. Step 5: Solve for x
    x = 63,014,454.80/8,319.70
  6. Step 6: Final answer
    x = 7,574.13

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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.