Home / 13,260.26-18,301.95-8,411.87

Finding the Fourth Proportional to 13,260.26, 18,301.95 and 8,411.87

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Solution

The fourth proportional to 13,260.26, 18,301.95 and 8,411.87 is: 11,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.26 : 18,301.95 = 8,411.87 : x
  2. Step 2: Convert to fraction form
    13,260.26/18,301.95 = 8,411.87/x
  3. Step 3: Cross multiply
    13,260.26x = 18,301.95 × 8,411.87
  4. Step 4: Simplify right side
    13,260.26x = 153,953,669.90
  5. Step 5: Solve for x
    x = 153,953,669.90/13,260.26
  6. Step 6: Final answer
    x = 11,610.15

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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.