Home / 10,858.12-14,985.54-6,382.28

Finding the Fourth Proportional to 10,858.12, 14,985.54 and 6,382.28

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Solution

The fourth proportional to 10,858.12, 14,985.54 and 6,382.28 is: 8,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.12 : 14,985.54 = 6,382.28 : x
  2. Step 2: Convert to fraction form
    10,858.12/14,985.54 = 6,382.28/x
  3. Step 3: Cross multiply
    10,858.12x = 14,985.54 × 6,382.28
  4. Step 4: Simplify right side
    10,858.12x = 95,641,949.70
  5. Step 5: Solve for x
    x = 95,641,949.70/10,858.12
  6. Step 6: Final answer
    x = 8,808.34

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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.