Home / 7,987.12-10,995.60-5,994.34

Finding the Fourth Proportional to 7,987.12, 10,995.60 and 5,994.34

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Solution

The fourth proportional to 7,987.12, 10,995.60 and 5,994.34 is: 8,252.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.12 : 10,995.60 = 5,994.34 : x
  2. Step 2: Convert to fraction form
    7,987.12/10,995.60 = 5,994.34/x
  3. Step 3: Cross multiply
    7,987.12x = 10,995.60 × 5,994.34
  4. Step 4: Simplify right side
    7,987.12x = 65,911,364.90
  5. Step 5: Solve for x
    x = 65,911,364.90/7,987.12
  6. Step 6: Final answer
    x = 8,252.21

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.