Home / 10,976.77-16,428.70-8,775.19

Finding the Fourth Proportional to 10,976.77, 16,428.70 and 8,775.19

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Solution

The fourth proportional to 10,976.77, 16,428.70 and 8,775.19 is: 13,133.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,976.77 : 16,428.70 = 8,775.19 : x
  2. Step 2: Convert to fraction form
    10,976.77/16,428.70 = 8,775.19/x
  3. Step 3: Cross multiply
    10,976.77x = 16,428.70 × 8,775.19
  4. Step 4: Simplify right side
    10,976.77x = 144,164,963.95
  5. Step 5: Solve for x
    x = 144,164,963.95/10,976.77
  6. Step 6: Final answer
    x = 13,133.64

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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.