Home / 9,671.22-13,347.51-5,478.66

Finding the Fourth Proportional to 9,671.22, 13,347.51 and 5,478.66

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Solution

The fourth proportional to 9,671.22, 13,347.51 and 5,478.66 is: 7,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,671.22 : 13,347.51 = 5,478.66 : x
  2. Step 2: Convert to fraction form
    9,671.22/13,347.51 = 5,478.66/x
  3. Step 3: Cross multiply
    9,671.22x = 13,347.51 × 5,478.66
  4. Step 4: Simplify right side
    9,671.22x = 73,126,469.14
  5. Step 5: Solve for x
    x = 73,126,469.14/9,671.22
  6. Step 6: Final answer
    x = 7,561.25

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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.