Home / 13,055.18-18,021.29-8,808.75

Finding the Fourth Proportional to 13,055.18, 18,021.29 and 8,808.75

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Solution

The fourth proportional to 13,055.18, 18,021.29 and 8,808.75 is: 12,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.18 : 18,021.29 = 8,808.75 : x
  2. Step 2: Convert to fraction form
    13,055.18/18,021.29 = 8,808.75/x
  3. Step 3: Cross multiply
    13,055.18x = 18,021.29 × 8,808.75
  4. Step 4: Simplify right side
    13,055.18x = 158,744,994.24
  5. Step 5: Solve for x
    x = 158,744,994.24/13,055.18
  6. Step 6: Final answer
    x = 12,159.55

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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.