Home / 17,331.39-23,915.63-9,778.89

Finding the Fourth Proportional to 17,331.39, 23,915.63 and 9,778.89

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Solution

The fourth proportional to 17,331.39, 23,915.63 and 9,778.89 is: 13,493.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,331.39 : 23,915.63 = 9,778.89 : x
  2. Step 2: Convert to fraction form
    17,331.39/23,915.63 = 9,778.89/x
  3. Step 3: Cross multiply
    17,331.39x = 23,915.63 × 9,778.89
  4. Step 4: Simplify right side
    17,331.39x = 233,868,266.16
  5. Step 5: Solve for x
    x = 233,868,266.16/17,331.39
  6. Step 6: Final answer
    x = 13,493.91

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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.