Home / 6,914.16-9,543.40-3,930.12

Finding the Fourth Proportional to 6,914.16, 9,543.40 and 3,930.12

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Solution

The fourth proportional to 6,914.16, 9,543.40 and 3,930.12 is: 5,424.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,914.16 : 9,543.40 = 3,930.12 : x
  2. Step 2: Convert to fraction form
    6,914.16/9,543.40 = 3,930.12/x
  3. Step 3: Cross multiply
    6,914.16x = 9,543.40 × 3,930.12
  4. Step 4: Simplify right side
    6,914.16x = 37,506,707.21
  5. Step 5: Solve for x
    x = 37,506,707.21/6,914.16
  6. Step 6: Final answer
    x = 5,424.62

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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.