Home / 8,981.64-12,396.06-6,853.55

Finding the Fourth Proportional to 8,981.64, 12,396.06 and 6,853.55

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Solution

The fourth proportional to 8,981.64, 12,396.06 and 6,853.55 is: 9,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.64 : 12,396.06 = 6,853.55 : x
  2. Step 2: Convert to fraction form
    8,981.64/12,396.06 = 6,853.55/x
  3. Step 3: Cross multiply
    8,981.64x = 12,396.06 × 6,853.55
  4. Step 4: Simplify right side
    8,981.64x = 84,956,955.03
  5. Step 5: Solve for x
    x = 84,956,955.03/8,981.64
  6. Step 6: Final answer
    x = 9,458.96

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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.