Home / 13,417.46-18,512.80-8,040.77

Finding the Fourth Proportional to 13,417.46, 18,512.80 and 8,040.77

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Solution

The fourth proportional to 13,417.46, 18,512.80 and 8,040.77 is: 11,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.46 : 18,512.80 = 8,040.77 : x
  2. Step 2: Convert to fraction form
    13,417.46/18,512.80 = 8,040.77/x
  3. Step 3: Cross multiply
    13,417.46x = 18,512.80 × 8,040.77
  4. Step 4: Simplify right side
    13,417.46x = 148,857,166.86
  5. Step 5: Solve for x
    x = 148,857,166.86/13,417.46
  6. Step 6: Final answer
    x = 11,094.29

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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.