Home / 8,988.32-12,408.32-6,967.28

Finding the Fourth Proportional to 8,988.32, 12,408.32 and 6,967.28

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Solution

The fourth proportional to 8,988.32, 12,408.32 and 6,967.28 is: 9,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.32 : 12,408.32 = 6,967.28 : x
  2. Step 2: Convert to fraction form
    8,988.32/12,408.32 = 6,967.28/x
  3. Step 3: Cross multiply
    8,988.32x = 12,408.32 × 6,967.28
  4. Step 4: Simplify right side
    8,988.32x = 86,452,239.77
  5. Step 5: Solve for x
    x = 86,452,239.77/8,988.32
  6. Step 6: Final answer
    x = 9,618.29

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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.