Home / 13,487.18-18,615.36-8,763.26

Finding the Fourth Proportional to 13,487.18, 18,615.36 and 8,763.26

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Solution

The fourth proportional to 13,487.18, 18,615.36 and 8,763.26 is: 12,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.18 : 18,615.36 = 8,763.26 : x
  2. Step 2: Convert to fraction form
    13,487.18/18,615.36 = 8,763.26/x
  3. Step 3: Cross multiply
    13,487.18x = 18,615.36 × 8,763.26
  4. Step 4: Simplify right side
    13,487.18x = 163,131,239.67
  5. Step 5: Solve for x
    x = 163,131,239.67/13,487.18
  6. Step 6: Final answer
    x = 12,095.28

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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.