Home / 14,595.23-20,140.28-8,221.55

Finding the Fourth Proportional to 14,595.23, 20,140.28 and 8,221.55

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Solution

The fourth proportional to 14,595.23, 20,140.28 and 8,221.55 is: 11,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,595.23 : 20,140.28 = 8,221.55 : x
  2. Step 2: Convert to fraction form
    14,595.23/20,140.28 = 8,221.55/x
  3. Step 3: Cross multiply
    14,595.23x = 20,140.28 × 8,221.55
  4. Step 4: Simplify right side
    14,595.23x = 165,584,208.06
  5. Step 5: Solve for x
    x = 165,584,208.06/14,595.23
  6. Step 6: Final answer
    x = 11,345.09

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Double scale
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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.