Home / 11,513.13-15,888.11-6,545.13

Finding the Fourth Proportional to 11,513.13, 15,888.11 and 6,545.13

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Solution

The fourth proportional to 11,513.13, 15,888.11 and 6,545.13 is: 9,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.13 : 15,888.11 = 6,545.13 : x
  2. Step 2: Convert to fraction form
    11,513.13/15,888.11 = 6,545.13/x
  3. Step 3: Cross multiply
    11,513.13x = 15,888.11 × 6,545.13
  4. Step 4: Simplify right side
    11,513.13x = 103,989,745.40
  5. Step 5: Solve for x
    x = 103,989,745.40/11,513.13
  6. Step 6: Final answer
    x = 9,032.27

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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.