Home / 8,318.69-11,483.55-5,487.74

Finding the Fourth Proportional to 8,318.69, 11,483.55 and 5,487.74

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Solution

The fourth proportional to 8,318.69, 11,483.55 and 5,487.74 is: 7,575.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.69 : 11,483.55 = 5,487.74 : x
  2. Step 2: Convert to fraction form
    8,318.69/11,483.55 = 5,487.74/x
  3. Step 3: Cross multiply
    8,318.69x = 11,483.55 × 5,487.74
  4. Step 4: Simplify right side
    8,318.69x = 63,018,679.26
  5. Step 5: Solve for x
    x = 63,018,679.26/8,318.69
  6. Step 6: Final answer
    x = 7,575.56

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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.