Home / 14,109.40-19,466.76-8,140.96

Finding the Fourth Proportional to 14,109.40, 19,466.76 and 8,140.96

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Solution

The fourth proportional to 14,109.40, 19,466.76 and 8,140.96 is: 11,232.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.40 : 19,466.76 = 8,140.96 : x
  2. Step 2: Convert to fraction form
    14,109.40/19,466.76 = 8,140.96/x
  3. Step 3: Cross multiply
    14,109.40x = 19,466.76 × 8,140.96
  4. Step 4: Simplify right side
    14,109.40x = 158,478,114.49
  5. Step 5: Solve for x
    x = 158,478,114.49/14,109.40
  6. Step 6: Final answer
    x = 11,232.09

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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.