Home / 14,310.40-19,749.34-7,937.60

Finding the Fourth Proportional to 14,310.40, 19,749.34 and 7,937.60

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Solution

The fourth proportional to 14,310.40, 19,749.34 and 7,937.60 is: 10,954.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,310.40 : 19,749.34 = 7,937.60 : x
  2. Step 2: Convert to fraction form
    14,310.40/19,749.34 = 7,937.60/x
  3. Step 3: Cross multiply
    14,310.40x = 19,749.34 × 7,937.60
  4. Step 4: Simplify right side
    14,310.40x = 156,762,294.68
  5. Step 5: Solve for x
    x = 156,762,294.68/14,310.40
  6. Step 6: Final answer
    x = 10,954.43

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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.