Home / 8,948.88-12,349.60-5,412.12

Finding the Fourth Proportional to 8,948.88, 12,349.60 and 5,412.12

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Solution

The fourth proportional to 8,948.88, 12,349.60 and 5,412.12 is: 7,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.88 : 12,349.60 = 5,412.12 : x
  2. Step 2: Convert to fraction form
    8,948.88/12,349.60 = 5,412.12/x
  3. Step 3: Cross multiply
    8,948.88x = 12,349.60 × 5,412.12
  4. Step 4: Simplify right side
    8,948.88x = 66,837,457.31
  5. Step 5: Solve for x
    x = 66,837,457.31/8,948.88
  6. Step 6: Final answer
    x = 7,468.81

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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.