Home / 9,688.09-13,369.11-5,381.46

Finding the Fourth Proportional to 9,688.09, 13,369.11 and 5,381.46

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Solution

The fourth proportional to 9,688.09, 13,369.11 and 5,381.46 is: 7,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.09 : 13,369.11 = 5,381.46 : x
  2. Step 2: Convert to fraction form
    9,688.09/13,369.11 = 5,381.46/x
  3. Step 3: Cross multiply
    9,688.09x = 13,369.11 × 5,381.46
  4. Step 4: Simplify right side
    9,688.09x = 71,945,350.67
  5. Step 5: Solve for x
    x = 71,945,350.67/9,688.09
  6. Step 6: Final answer
    x = 7,426.16

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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.