Home / 13,207.04-18,225.77-7,238.69

Finding the Fourth Proportional to 13,207.04, 18,225.77 and 7,238.69

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Solution

The fourth proportional to 13,207.04, 18,225.77 and 7,238.69 is: 9,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.04 : 18,225.77 = 7,238.69 : x
  2. Step 2: Convert to fraction form
    13,207.04/18,225.77 = 7,238.69/x
  3. Step 3: Cross multiply
    13,207.04x = 18,225.77 × 7,238.69
  4. Step 4: Simplify right side
    13,207.04x = 131,930,699.04
  5. Step 5: Solve for x
    x = 131,930,699.04/13,207.04
  6. Step 6: Final answer
    x = 9,989.42

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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.