Home / 10,943.28-15,106.32-7,798.68

Finding the Fourth Proportional to 10,943.28, 15,106.32 and 7,798.68

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Solution

The fourth proportional to 10,943.28, 15,106.32 and 7,798.68 is: 10,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,943.28 : 15,106.32 = 7,798.68 : x
  2. Step 2: Convert to fraction form
    10,943.28/15,106.32 = 7,798.68/x
  3. Step 3: Cross multiply
    10,943.28x = 15,106.32 × 7,798.68
  4. Step 4: Simplify right side
    10,943.28x = 117,809,355.66
  5. Step 5: Solve for x
    x = 117,809,355.66/10,943.28
  6. Step 6: Final answer
    x = 10,765.45

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Double scale
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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.