Home / 11,487.69-15,852.45-6,451.29

Finding the Fourth Proportional to 11,487.69, 15,852.45 and 6,451.29

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Solution

The fourth proportional to 11,487.69, 15,852.45 and 6,451.29 is: 8,902.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.69 : 15,852.45 = 6,451.29 : x
  2. Step 2: Convert to fraction form
    11,487.69/15,852.45 = 6,451.29/x
  3. Step 3: Cross multiply
    11,487.69x = 15,852.45 × 6,451.29
  4. Step 4: Simplify right side
    11,487.69x = 102,268,752.16
  5. Step 5: Solve for x
    x = 102,268,752.16/11,487.69
  6. Step 6: Final answer
    x = 8,902.46

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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.