Home / 7,430.30-11,145.46-5,558.12

Finding the Fourth Proportional to 7,430.30, 11,145.46 and 5,558.12

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Solution

The fourth proportional to 7,430.30, 11,145.46 and 5,558.12 is: 8,337.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.30 : 11,145.46 = 5,558.12 : x
  2. Step 2: Convert to fraction form
    7,430.30/11,145.46 = 5,558.12/x
  3. Step 3: Cross multiply
    7,430.30x = 11,145.46 × 5,558.12
  4. Step 4: Simplify right side
    7,430.30x = 61,947,804.14
  5. Step 5: Solve for x
    x = 61,947,804.14/7,430.30
  6. Step 6: Final answer
    x = 8,337.19

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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.