Home / 13,998.18-19,316.75-8,692.88

Finding the Fourth Proportional to 13,998.18, 19,316.75 and 8,692.88

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Solution

The fourth proportional to 13,998.18, 19,316.75 and 8,692.88 is: 11,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.18 : 19,316.75 = 8,692.88 : x
  2. Step 2: Convert to fraction form
    13,998.18/19,316.75 = 8,692.88/x
  3. Step 3: Cross multiply
    13,998.18x = 19,316.75 × 8,692.88
  4. Step 4: Simplify right side
    13,998.18x = 167,918,189.74
  5. Step 5: Solve for x
    x = 167,918,189.74/13,998.18
  6. Step 6: Final answer
    x = 11,995.72

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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.