Home / 13,230.13-18,258.11-7,641.13

Finding the Fourth Proportional to 13,230.13, 18,258.11 and 7,641.13

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Solution

The fourth proportional to 13,230.13, 18,258.11 and 7,641.13 is: 10,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.13 : 18,258.11 = 7,641.13 : x
  2. Step 2: Convert to fraction form
    13,230.13/18,258.11 = 7,641.13/x
  3. Step 3: Cross multiply
    13,230.13x = 18,258.11 × 7,641.13
  4. Step 4: Simplify right side
    13,230.13x = 139,512,592.06
  5. Step 5: Solve for x
    x = 139,512,592.06/13,230.13
  6. Step 6: Final answer
    x = 10,545.07

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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.