Home / 10,382.88-14,328.32-5,667.20

Finding the Fourth Proportional to 10,382.88, 14,328.32 and 5,667.20

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Solution

The fourth proportional to 10,382.88, 14,328.32 and 5,667.20 is: 7,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.88 : 14,328.32 = 5,667.20 : x
  2. Step 2: Convert to fraction form
    10,382.88/14,328.32 = 5,667.20/x
  3. Step 3: Cross multiply
    10,382.88x = 14,328.32 × 5,667.20
  4. Step 4: Simplify right side
    10,382.88x = 81,201,355.13
  5. Step 5: Solve for x
    x = 81,201,355.13/10,382.88
  6. Step 6: Final answer
    x = 7,820.70

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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.