Home / 10,263.78-14,171.60-6,290.32

Finding the Fourth Proportional to 10,263.78, 14,171.60 and 6,290.32

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Solution

The fourth proportional to 10,263.78, 14,171.60 and 6,290.32 is: 8,685.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,263.78 : 14,171.60 = 6,290.32 : x
  2. Step 2: Convert to fraction form
    10,263.78/14,171.60 = 6,290.32/x
  3. Step 3: Cross multiply
    10,263.78x = 14,171.60 × 6,290.32
  4. Step 4: Simplify right side
    10,263.78x = 89,143,898.91
  5. Step 5: Solve for x
    x = 89,143,898.91/10,263.78
  6. Step 6: Final answer
    x = 8,685.29

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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.