Home / 12,088.80-18,116.19-9,612.63

Finding the Fourth Proportional to 12,088.80, 18,116.19 and 9,612.63

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Solution

The fourth proportional to 12,088.80, 18,116.19 and 9,612.63 is: 14,405.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,088.80 : 18,116.19 = 9,612.63 : x
  2. Step 2: Convert to fraction form
    12,088.80/18,116.19 = 9,612.63/x
  3. Step 3: Cross multiply
    12,088.80x = 18,116.19 × 9,612.63
  4. Step 4: Simplify right side
    12,088.80x = 174,144,231.48
  5. Step 5: Solve for x
    x = 174,144,231.48/12,088.80
  6. Step 6: Final answer
    x = 14,405.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.