Home / 13,306.81-18,363.13-7,339.03

Finding the Fourth Proportional to 13,306.81, 18,363.13 and 7,339.03

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Solution

The fourth proportional to 13,306.81, 18,363.13 and 7,339.03 is: 10,127.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.81 : 18,363.13 = 7,339.03 : x
  2. Step 2: Convert to fraction form
    13,306.81/18,363.13 = 7,339.03/x
  3. Step 3: Cross multiply
    13,306.81x = 18,363.13 × 7,339.03
  4. Step 4: Simplify right side
    13,306.81x = 134,767,561.96
  5. Step 5: Solve for x
    x = 134,767,561.96/13,306.81
  6. Step 6: Final answer
    x = 10,127.71

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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.