Home / 10,811.40-14,919.84-6,337.80

Finding the Fourth Proportional to 10,811.40, 14,919.84 and 6,337.80

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Solution

The fourth proportional to 10,811.40, 14,919.84 and 6,337.80 is: 8,746.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.40 : 14,919.84 = 6,337.80 : x
  2. Step 2: Convert to fraction form
    10,811.40/14,919.84 = 6,337.80/x
  3. Step 3: Cross multiply
    10,811.40x = 14,919.84 × 6,337.80
  4. Step 4: Simplify right side
    10,811.40x = 94,558,961.95
  5. Step 5: Solve for x
    x = 94,558,961.95/10,811.40
  6. Step 6: Final answer
    x = 8,746.23

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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.