Home / 8,988.89-12,405.03-5,009.97

Finding the Fourth Proportional to 8,988.89, 12,405.03 and 5,009.97

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Solution

The fourth proportional to 8,988.89, 12,405.03 and 5,009.97 is: 6,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.89 : 12,405.03 = 5,009.97 : x
  2. Step 2: Convert to fraction form
    8,988.89/12,405.03 = 5,009.97/x
  3. Step 3: Cross multiply
    8,988.89x = 12,405.03 × 5,009.97
  4. Step 4: Simplify right side
    8,988.89x = 62,148,828.15
  5. Step 5: Solve for x
    x = 62,148,828.15/8,988.89
  6. Step 6: Final answer
    x = 6,913.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.