Home / 12,206.20-16,814.43-10,407.82

Finding the Fourth Proportional to 12,206.20, 16,814.43 and 10,407.82

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Solution

The fourth proportional to 12,206.20, 16,814.43 and 10,407.82 is: 14,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.20 : 16,814.43 = 10,407.82 : x
  2. Step 2: Convert to fraction form
    12,206.20/16,814.43 = 10,407.82/x
  3. Step 3: Cross multiply
    12,206.20x = 16,814.43 × 10,407.82
  4. Step 4: Simplify right side
    12,206.20x = 175,001,518.81
  5. Step 5: Solve for x
    x = 175,001,518.81/12,206.20
  6. Step 6: Final answer
    x = 14,337.10

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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.