Home / 10,257.28-14,148.48-7,112.32

Finding the Fourth Proportional to 10,257.28, 14,148.48 and 7,112.32

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Solution

The fourth proportional to 10,257.28, 14,148.48 and 7,112.32 is: 9,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.28 : 14,148.48 = 7,112.32 : x
  2. Step 2: Convert to fraction form
    10,257.28/14,148.48 = 7,112.32/x
  3. Step 3: Cross multiply
    10,257.28x = 14,148.48 × 7,112.32
  4. Step 4: Simplify right side
    10,257.28x = 100,628,517.27
  5. Step 5: Solve for x
    x = 100,628,517.27/10,257.28
  6. Step 6: Final answer
    x = 9,810.45

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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.