Home / 10,202.12-15,271.12-7,020.92

Finding the Fourth Proportional to 10,202.12, 15,271.12 and 7,020.92

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Solution

The fourth proportional to 10,202.12, 15,271.12 and 7,020.92 is: 10,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,202.12 : 15,271.12 = 7,020.92 : x
  2. Step 2: Convert to fraction form
    10,202.12/15,271.12 = 7,020.92/x
  3. Step 3: Cross multiply
    10,202.12x = 15,271.12 × 7,020.92
  4. Step 4: Simplify right side
    10,202.12x = 107,217,311.83
  5. Step 5: Solve for x
    x = 107,217,311.83/10,202.12
  6. Step 6: Final answer
    x = 10,509.32

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