Home / 6,749.21-9,309.90-5,254.76

Finding the Fourth Proportional to 6,749.21, 9,309.90 and 5,254.76

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Solution

The fourth proportional to 6,749.21, 9,309.90 and 5,254.76 is: 7,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.21 : 9,309.90 = 5,254.76 : x
  2. Step 2: Convert to fraction form
    6,749.21/9,309.90 = 5,254.76/x
  3. Step 3: Cross multiply
    6,749.21x = 9,309.90 × 5,254.76
  4. Step 4: Simplify right side
    6,749.21x = 48,921,333.10
  5. Step 5: Solve for x
    x = 48,921,333.10/6,749.21
  6. Step 6: Final answer
    x = 7,248.45

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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.