Home / 12,237.81-18,353.75-5,657.72

Finding the Fourth Proportional to 12,237.81, 18,353.75 and 5,657.72

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Solution

The fourth proportional to 12,237.81, 18,353.75 and 5,657.72 is: 8,485.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.81 : 18,353.75 = 5,657.72 : x
  2. Step 2: Convert to fraction form
    12,237.81/18,353.75 = 5,657.72/x
  3. Step 3: Cross multiply
    12,237.81x = 18,353.75 × 5,657.72
  4. Step 4: Simplify right side
    12,237.81x = 103,840,258.39
  5. Step 5: Solve for x
    x = 103,840,258.39/12,237.81
  6. Step 6: Final answer
    x = 8,485.20

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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.