Home / 6,989.48-9,638.34-4,630.76

Finding the Fourth Proportional to 6,989.48, 9,638.34 and 4,630.76

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Solution

The fourth proportional to 6,989.48, 9,638.34 and 4,630.76 is: 6,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.48 : 9,638.34 = 4,630.76 : x
  2. Step 2: Convert to fraction form
    6,989.48/9,638.34 = 4,630.76/x
  3. Step 3: Cross multiply
    6,989.48x = 9,638.34 × 4,630.76
  4. Step 4: Simplify right side
    6,989.48x = 44,632,839.34
  5. Step 5: Solve for x
    x = 44,632,839.34/6,989.48
  6. Step 6: Final answer
    x = 6,385.72

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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.