Home / 6,921.17-9,540.30-4,526.90

Finding the Fourth Proportional to 6,921.17, 9,540.30 and 4,526.90

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Solution

The fourth proportional to 6,921.17, 9,540.30 and 4,526.90 is: 6,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.17 : 9,540.30 = 4,526.90 : x
  2. Step 2: Convert to fraction form
    6,921.17/9,540.30 = 4,526.90/x
  3. Step 3: Cross multiply
    6,921.17x = 9,540.30 × 4,526.90
  4. Step 4: Simplify right side
    6,921.17x = 43,187,984.07
  5. Step 5: Solve for x
    x = 43,187,984.07/6,921.17
  6. Step 6: Final answer
    x = 6,239.98

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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.