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Finding the Fourth Proportional to 8,888.42, 13,335.06 and 3,889.88

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Solution

The fourth proportional to 8,888.42, 13,335.06 and 3,889.88 is: 5,835.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.42 : 13,335.06 = 3,889.88 : x
  2. Step 2: Convert to fraction form
    8,888.42/13,335.06 = 3,889.88/x
  3. Step 3: Cross multiply
    8,888.42x = 13,335.06 × 3,889.88
  4. Step 4: Simplify right side
    8,888.42x = 51,871,831.12
  5. Step 5: Solve for x
    x = 51,871,831.12/8,888.42
  6. Step 6: Final answer
    x = 5,835.89

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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.