Home / 10,416.60-15,628.10-8,226.20

Finding the Fourth Proportional to 10,416.60, 15,628.10 and 8,226.20

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Solution

The fourth proportional to 10,416.60, 15,628.10 and 8,226.20 is: 12,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,416.60 : 15,628.10 = 8,226.20 : x
  2. Step 2: Convert to fraction form
    10,416.60/15,628.10 = 8,226.20/x
  3. Step 3: Cross multiply
    10,416.60x = 15,628.10 × 8,226.20
  4. Step 4: Simplify right side
    10,416.60x = 128,559,876.22
  5. Step 5: Solve for x
    x = 128,559,876.22/10,416.60
  6. Step 6: Final answer
    x = 12,341.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.