Home / 11,487.18-15,852.30-6,451.40

Finding the Fourth Proportional to 11,487.18, 15,852.30 and 6,451.40

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Solution

The fourth proportional to 11,487.18, 15,852.30 and 6,451.40 is: 8,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.18 : 15,852.30 = 6,451.40 : x
  2. Step 2: Convert to fraction form
    11,487.18/15,852.30 = 6,451.40/x
  3. Step 3: Cross multiply
    11,487.18x = 15,852.30 × 6,451.40
  4. Step 4: Simplify right side
    11,487.18x = 102,269,598.09
  5. Step 5: Solve for x
    x = 102,269,598.09/11,487.18
  6. Step 6: Final answer
    x = 8,902.94

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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.