Home / 15,415.34-21,273.08-8,703.14

Finding the Fourth Proportional to 15,415.34, 21,273.08 and 8,703.14

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Solution

The fourth proportional to 15,415.34, 21,273.08 and 8,703.14 is: 12,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.34 : 21,273.08 = 8,703.14 : x
  2. Step 2: Convert to fraction form
    15,415.34/21,273.08 = 8,703.14/x
  3. Step 3: Cross multiply
    15,415.34x = 21,273.08 × 8,703.14
  4. Step 4: Simplify right side
    15,415.34x = 185,142,593.47
  5. Step 5: Solve for x
    x = 185,142,593.47/15,415.34
  6. Step 6: Final answer
    x = 12,010.28

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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.