Home / 9,678.24-13,356.90-5,486.76

Finding the Fourth Proportional to 9,678.24, 13,356.90 and 5,486.76

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Solution

The fourth proportional to 9,678.24, 13,356.90 and 5,486.76 is: 7,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.24 : 13,356.90 = 5,486.76 : x
  2. Step 2: Convert to fraction form
    9,678.24/13,356.90 = 5,486.76/x
  3. Step 3: Cross multiply
    9,678.24x = 13,356.90 × 5,486.76
  4. Step 4: Simplify right side
    9,678.24x = 73,286,104.64
  5. Step 5: Solve for x
    x = 73,286,104.64/9,678.24
  6. Step 6: Final answer
    x = 7,572.26

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Half scale
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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.