Home / 7,117.11-9,807.62-5,440.41

Finding the Fourth Proportional to 7,117.11, 9,807.62 and 5,440.41

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Solution

The fourth proportional to 7,117.11, 9,807.62 and 5,440.41 is: 7,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.11 : 9,807.62 = 5,440.41 : x
  2. Step 2: Convert to fraction form
    7,117.11/9,807.62 = 5,440.41/x
  3. Step 3: Cross multiply
    7,117.11x = 9,807.62 × 5,440.41
  4. Step 4: Simplify right side
    7,117.11x = 53,357,446.72
  5. Step 5: Solve for x
    x = 53,357,446.72/7,117.11
  6. Step 6: Final answer
    x = 7,497.07

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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.