Home / 9,362.10-12,920.13-6,381.30

Finding the Fourth Proportional to 9,362.10, 12,920.13 and 6,381.30

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Solution

The fourth proportional to 9,362.10, 12,920.13 and 6,381.30 is: 8,806.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.10 : 12,920.13 = 6,381.30 : x
  2. Step 2: Convert to fraction form
    9,362.10/12,920.13 = 6,381.30/x
  3. Step 3: Cross multiply
    9,362.10x = 12,920.13 × 6,381.30
  4. Step 4: Simplify right side
    9,362.10x = 82,447,225.57
  5. Step 5: Solve for x
    x = 82,447,225.57/9,362.10
  6. Step 6: Final answer
    x = 8,806.49

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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.