Home / 16,555.69-22,856.26-13,187.71

Finding the Fourth Proportional to 16,555.69, 22,856.26 and 13,187.71

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Solution

The fourth proportional to 16,555.69, 22,856.26 and 13,187.71 is: 18,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,555.69 : 22,856.26 = 13,187.71 : x
  2. Step 2: Convert to fraction form
    16,555.69/22,856.26 = 13,187.71/x
  3. Step 3: Cross multiply
    16,555.69x = 22,856.26 × 13,187.71
  4. Step 4: Simplify right side
    16,555.69x = 301,421,614.28
  5. Step 5: Solve for x
    x = 301,421,614.28/16,555.69
  6. Step 6: Final answer
    x = 18,206.53

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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.