Home / 7,948.89-10,930.56-6,899.13

Finding the Fourth Proportional to 7,948.89, 10,930.56 and 6,899.13

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Solution

The fourth proportional to 7,948.89, 10,930.56 and 6,899.13 is: 9,487.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.89 : 10,930.56 = 6,899.13 : x
  2. Step 2: Convert to fraction form
    7,948.89/10,930.56 = 6,899.13/x
  3. Step 3: Cross multiply
    7,948.89x = 10,930.56 × 6,899.13
  4. Step 4: Simplify right side
    7,948.89x = 75,411,354.41
  5. Step 5: Solve for x
    x = 75,411,354.41/7,948.89
  6. Step 6: Final answer
    x = 9,487.03

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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.