Home / 9,424.11-12,975.48-7,178.79

Finding the Fourth Proportional to 9,424.11, 12,975.48 and 7,178.79

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Solution

The fourth proportional to 9,424.11, 12,975.48 and 7,178.79 is: 9,884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,424.11 : 12,975.48 = 7,178.79 : x
  2. Step 2: Convert to fraction form
    9,424.11/12,975.48 = 7,178.79/x
  3. Step 3: Cross multiply
    9,424.11x = 12,975.48 × 7,178.79
  4. Step 4: Simplify right side
    9,424.11x = 93,148,246.07
  5. Step 5: Solve for x
    x = 93,148,246.07/9,424.11
  6. Step 6: Final answer
    x = 9,884.04

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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.