Home / 13,567.69-18,722.91-7,902.75

Finding the Fourth Proportional to 13,567.69, 18,722.91 and 7,902.75

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Solution

The fourth proportional to 13,567.69, 18,722.91 and 7,902.75 is: 10,905.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.69 : 18,722.91 = 7,902.75 : x
  2. Step 2: Convert to fraction form
    13,567.69/18,722.91 = 7,902.75/x
  3. Step 3: Cross multiply
    13,567.69x = 18,722.91 × 7,902.75
  4. Step 4: Simplify right side
    13,567.69x = 147,962,477.00
  5. Step 5: Solve for x
    x = 147,962,477.00/13,567.69
  6. Step 6: Final answer
    x = 10,905.50

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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.