Home / 10,382.90-14,328.46-5,667.28

Finding the Fourth Proportional to 10,382.90, 14,328.46 and 5,667.28

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Solution

The fourth proportional to 10,382.90, 14,328.46 and 5,667.28 is: 7,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.90 : 14,328.46 = 5,667.28 : x
  2. Step 2: Convert to fraction form
    10,382.90/14,328.46 = 5,667.28/x
  3. Step 3: Cross multiply
    10,382.90x = 14,328.46 × 5,667.28
  4. Step 4: Simplify right side
    10,382.90x = 81,203,394.79
  5. Step 5: Solve for x
    x = 81,203,394.79/10,382.90
  6. Step 6: Final answer
    x = 7,820.88

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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.