Home / 7,113.49-9,816.60-4,131.07

Finding the Fourth Proportional to 7,113.49, 9,816.60 and 4,131.07

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Solution

The fourth proportional to 7,113.49, 9,816.60 and 4,131.07 is: 5,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.49 : 9,816.60 = 4,131.07 : x
  2. Step 2: Convert to fraction form
    7,113.49/9,816.60 = 4,131.07/x
  3. Step 3: Cross multiply
    7,113.49x = 9,816.60 × 4,131.07
  4. Step 4: Simplify right side
    7,113.49x = 40,553,061.76
  5. Step 5: Solve for x
    x = 40,553,061.76/7,113.49
  6. Step 6: Final answer
    x = 5,700.87

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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.