Home / 11,781.72-16,258.80-6,476.55

Finding the Fourth Proportional to 11,781.72, 16,258.80 and 6,476.55

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Solution

The fourth proportional to 11,781.72, 16,258.80 and 6,476.55 is: 8,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.72 : 16,258.80 = 6,476.55 : x
  2. Step 2: Convert to fraction form
    11,781.72/16,258.80 = 6,476.55/x
  3. Step 3: Cross multiply
    11,781.72x = 16,258.80 × 6,476.55
  4. Step 4: Simplify right side
    11,781.72x = 105,300,931.14
  5. Step 5: Solve for x
    x = 105,300,931.14/11,781.72
  6. Step 6: Final answer
    x = 8,937.65

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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.