Home / 7,347.20-10,138.96-4,203.19

Finding the Fourth Proportional to 7,347.20, 10,138.96 and 4,203.19

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Solution

The fourth proportional to 7,347.20, 10,138.96 and 4,203.19 is: 5,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.20 : 10,138.96 = 4,203.19 : x
  2. Step 2: Convert to fraction form
    7,347.20/10,138.96 = 4,203.19/x
  3. Step 3: Cross multiply
    7,347.20x = 10,138.96 × 4,203.19
  4. Step 4: Simplify right side
    7,347.20x = 42,615,939.43
  5. Step 5: Solve for x
    x = 42,615,939.43/7,347.20
  6. Step 6: Final answer
    x = 5,800.29

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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.