Home / 13,307.60-18,363.83-8,001.39

Finding the Fourth Proportional to 13,307.60, 18,363.83 and 8,001.39

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Solution

The fourth proportional to 13,307.60, 18,363.83 and 8,001.39 is: 11,041.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.60 : 18,363.83 = 8,001.39 : x
  2. Step 2: Convert to fraction form
    13,307.60/18,363.83 = 8,001.39/x
  3. Step 3: Cross multiply
    13,307.60x = 18,363.83 × 8,001.39
  4. Step 4: Simplify right side
    13,307.60x = 146,936,185.73
  5. Step 5: Solve for x
    x = 146,936,185.73/13,307.60
  6. Step 6: Final answer
    x = 11,041.52

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Half scale
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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.