Home / 8,218.78-11,341.95-4,492.78

Finding the Fourth Proportional to 8,218.78, 11,341.95 and 4,492.78

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Solution

The fourth proportional to 8,218.78, 11,341.95 and 4,492.78 is: 6,200.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.78 : 11,341.95 = 4,492.78 : x
  2. Step 2: Convert to fraction form
    8,218.78/11,341.95 = 4,492.78/x
  3. Step 3: Cross multiply
    8,218.78x = 11,341.95 × 4,492.78
  4. Step 4: Simplify right side
    8,218.78x = 50,956,886.12
  5. Step 5: Solve for x
    x = 50,956,886.12/8,218.78
  6. Step 6: Final answer
    x = 6,200.05

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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.