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Finding the Fourth Proportional to 8,036.70, 12,055.05 and 5,412.30

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Solution

The fourth proportional to 8,036.70, 12,055.05 and 5,412.30 is: 8,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,036.70 : 12,055.05 = 5,412.30 : x
  2. Step 2: Convert to fraction form
    8,036.70/12,055.05 = 5,412.30/x
  3. Step 3: Cross multiply
    8,036.70x = 12,055.05 × 5,412.30
  4. Step 4: Simplify right side
    8,036.70x = 65,245,547.12
  5. Step 5: Solve for x
    x = 65,245,547.12/8,036.70
  6. Step 6: Final answer
    x = 8,118.45

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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.