Home / 11,486.40-17,191.80-9,389.76

Finding the Fourth Proportional to 11,486.40, 17,191.80 and 9,389.76

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Solution

The fourth proportional to 11,486.40, 17,191.80 and 9,389.76 is: 14,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.40 : 17,191.80 = 9,389.76 : x
  2. Step 2: Convert to fraction form
    11,486.40/17,191.80 = 9,389.76/x
  3. Step 3: Cross multiply
    11,486.40x = 17,191.80 × 9,389.76
  4. Step 4: Simplify right side
    11,486.40x = 161,426,875.97
  5. Step 5: Solve for x
    x = 161,426,875.97/11,486.40
  6. Step 6: Final answer
    x = 14,053.74

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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.