Home / 7,115.45-10,673.17-1,921.32

Finding the Fourth Proportional to 7,115.45, 10,673.17 and 1,921.32

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Solution

The fourth proportional to 7,115.45, 10,673.17 and 1,921.32 is: 2,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.45 : 10,673.17 = 1,921.32 : x
  2. Step 2: Convert to fraction form
    7,115.45/10,673.17 = 1,921.32/x
  3. Step 3: Cross multiply
    7,115.45x = 10,673.17 × 1,921.32
  4. Step 4: Simplify right side
    7,115.45x = 20,506,574.98
  5. Step 5: Solve for x
    x = 20,506,574.98/7,115.45
  6. Step 6: Final answer
    x = 2,881.98

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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.