Home / 14,258.75-19,677-7,971.12

Finding the Fourth Proportional to 14,258.75, 19,677 and 7,971.12

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Solution

The fourth proportional to 14,258.75, 19,677 and 7,971.12 is: 11,000.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.75 : 19,677 = 7,971.12 : x
  2. Step 2: Convert to fraction form
    14,258.75/19,677 = 7,971.12/x
  3. Step 3: Cross multiply
    14,258.75x = 19,677 × 7,971.12
  4. Step 4: Simplify right side
    14,258.75x = 156,847,777.43
  5. Step 5: Solve for x
    x = 156,847,777.43/14,258.75
  6. Step 6: Final answer
    x = 11,000.11

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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.