Home / 10,388.89-14,332.44-7,246.90

Finding the Fourth Proportional to 10,388.89, 14,332.44 and 7,246.90

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Solution

The fourth proportional to 10,388.89, 14,332.44 and 7,246.90 is: 9,997.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.89 : 14,332.44 = 7,246.90 : x
  2. Step 2: Convert to fraction form
    10,388.89/14,332.44 = 7,246.90/x
  3. Step 3: Cross multiply
    10,388.89x = 14,332.44 × 7,246.90
  4. Step 4: Simplify right side
    10,388.89x = 103,865,759.44
  5. Step 5: Solve for x
    x = 103,865,759.44/10,388.89
  6. Step 6: Final answer
    x = 9,997.77

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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.