Home / 13,333.02-18,403.12-7,668.38

Finding the Fourth Proportional to 13,333.02, 18,403.12 and 7,668.38

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Solution

The fourth proportional to 13,333.02, 18,403.12 and 7,668.38 is: 10,584.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.02 : 18,403.12 = 7,668.38 : x
  2. Step 2: Convert to fraction form
    13,333.02/18,403.12 = 7,668.38/x
  3. Step 3: Cross multiply
    13,333.02x = 18,403.12 × 7,668.38
  4. Step 4: Simplify right side
    13,333.02x = 141,122,117.35
  5. Step 5: Solve for x
    x = 141,122,117.35/13,333.02
  6. Step 6: Final answer
    x = 10,584.41

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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.