Home / 7,848.12-11,772.18-2,657.64

Finding the Fourth Proportional to 7,848.12, 11,772.18 and 2,657.64

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Solution

The fourth proportional to 7,848.12, 11,772.18 and 2,657.64 is: 3,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,848.12 : 11,772.18 = 2,657.64 : x
  2. Step 2: Convert to fraction form
    7,848.12/11,772.18 = 2,657.64/x
  3. Step 3: Cross multiply
    7,848.12x = 11,772.18 × 2,657.64
  4. Step 4: Simplify right side
    7,848.12x = 31,286,216.46
  5. Step 5: Solve for x
    x = 31,286,216.46/7,848.12
  6. Step 6: Final answer
    x = 3,986.46

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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.