Home / 7,386.30-11,079.45-6,896.70

Finding the Fourth Proportional to 7,386.30, 11,079.45 and 6,896.70

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Solution

The fourth proportional to 7,386.30, 11,079.45 and 6,896.70 is: 10,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.30 : 11,079.45 = 6,896.70 : x
  2. Step 2: Convert to fraction form
    7,386.30/11,079.45 = 6,896.70/x
  3. Step 3: Cross multiply
    7,386.30x = 11,079.45 × 6,896.70
  4. Step 4: Simplify right side
    7,386.30x = 76,411,642.82
  5. Step 5: Solve for x
    x = 76,411,642.82/7,386.30
  6. Step 6: Final answer
    x = 10,345.05

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.