Home / 7,423.79-11,138.93-6,437.59

Finding the Fourth Proportional to 7,423.79, 11,138.93 and 6,437.59

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Solution

The fourth proportional to 7,423.79, 11,138.93 and 6,437.59 is: 9,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.79 : 11,138.93 = 6,437.59 : x
  2. Step 2: Convert to fraction form
    7,423.79/11,138.93 = 6,437.59/x
  3. Step 3: Cross multiply
    7,423.79x = 11,138.93 × 6,437.59
  4. Step 4: Simplify right side
    7,423.79x = 71,707,864.38
  5. Step 5: Solve for x
    x = 71,707,864.38/7,423.79
  6. Step 6: Final answer
    x = 9,659.20

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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.