Home / 14,869.39-20,519.79-8,155.07

Finding the Fourth Proportional to 14,869.39, 20,519.79 and 8,155.07

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Solution

The fourth proportional to 14,869.39, 20,519.79 and 8,155.07 is: 11,254.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,869.39 : 20,519.79 = 8,155.07 : x
  2. Step 2: Convert to fraction form
    14,869.39/20,519.79 = 8,155.07/x
  3. Step 3: Cross multiply
    14,869.39x = 20,519.79 × 8,155.07
  4. Step 4: Simplify right side
    14,869.39x = 167,340,323.84
  5. Step 5: Solve for x
    x = 167,340,323.84/14,869.39
  6. Step 6: Final answer
    x = 11,254.01

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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.