Home / 12,749.20-19,116.37-4,948.90

Finding the Fourth Proportional to 12,749.20, 19,116.37 and 4,948.90

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Solution

The fourth proportional to 12,749.20, 19,116.37 and 4,948.90 is: 7,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.20 : 19,116.37 = 4,948.90 : x
  2. Step 2: Convert to fraction form
    12,749.20/19,116.37 = 4,948.90/x
  3. Step 3: Cross multiply
    12,749.20x = 19,116.37 × 4,948.90
  4. Step 4: Simplify right side
    12,749.20x = 94,605,003.49
  5. Step 5: Solve for x
    x = 94,605,003.49/12,749.20
  6. Step 6: Final answer
    x = 7,420.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.