Home / 10,905.30-16,343.55-8,110.08

Finding the Fourth Proportional to 10,905.30, 16,343.55 and 8,110.08

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Solution

The fourth proportional to 10,905.30, 16,343.55 and 8,110.08 is: 12,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.30 : 16,343.55 = 8,110.08 : x
  2. Step 2: Convert to fraction form
    10,905.30/16,343.55 = 8,110.08/x
  3. Step 3: Cross multiply
    10,905.30x = 16,343.55 × 8,110.08
  4. Step 4: Simplify right side
    10,905.30x = 132,547,497.98
  5. Step 5: Solve for x
    x = 132,547,497.98/10,905.30
  6. Step 6: Final answer
    x = 12,154.41

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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.