Home / 7,449.68-11,177.04-4,678.40

Finding the Fourth Proportional to 7,449.68, 11,177.04 and 4,678.40

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Solution

The fourth proportional to 7,449.68, 11,177.04 and 4,678.40 is: 7,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.68 : 11,177.04 = 4,678.40 : x
  2. Step 2: Convert to fraction form
    7,449.68/11,177.04 = 4,678.40/x
  3. Step 3: Cross multiply
    7,449.68x = 11,177.04 × 4,678.40
  4. Step 4: Simplify right side
    7,449.68x = 52,290,663.94
  5. Step 5: Solve for x
    x = 52,290,663.94/7,449.68
  6. Step 6: Final answer
    x = 7,019.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.