Home / 9,309.96-12,846.87-7,545.78

Finding the Fourth Proportional to 9,309.96, 12,846.87 and 7,545.78

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Solution

The fourth proportional to 9,309.96, 12,846.87 and 7,545.78 is: 10,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.96 : 12,846.87 = 7,545.78 : x
  2. Step 2: Convert to fraction form
    9,309.96/12,846.87 = 7,545.78/x
  3. Step 3: Cross multiply
    9,309.96x = 12,846.87 × 7,545.78
  4. Step 4: Simplify right side
    9,309.96x = 96,939,654.71
  5. Step 5: Solve for x
    x = 96,939,654.71/9,309.96
  6. Step 6: Final answer
    x = 10,412.47

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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.