Home / 10,377.28-14,320.70-5,661.66

Finding the Fourth Proportional to 10,377.28, 14,320.70 and 5,661.66

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Solution

The fourth proportional to 10,377.28, 14,320.70 and 5,661.66 is: 7,813.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,377.28 : 14,320.70 = 5,661.66 : x
  2. Step 2: Convert to fraction form
    10,377.28/14,320.70 = 5,661.66/x
  3. Step 3: Cross multiply
    10,377.28x = 14,320.70 × 5,661.66
  4. Step 4: Simplify right side
    10,377.28x = 81,078,934.36
  5. Step 5: Solve for x
    x = 81,078,934.36/10,377.28
  6. Step 6: Final answer
    x = 7,813.12

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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.