Home / 12,897.14-19,345.70-10,316.48

Finding the Fourth Proportional to 12,897.14, 19,345.70 and 10,316.48

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Solution

The fourth proportional to 12,897.14, 19,345.70 and 10,316.48 is: 15,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.14 : 19,345.70 = 10,316.48 : x
  2. Step 2: Convert to fraction form
    12,897.14/19,345.70 = 10,316.48/x
  3. Step 3: Cross multiply
    12,897.14x = 19,345.70 × 10,316.48
  4. Step 4: Simplify right side
    12,897.14x = 199,579,456.20
  5. Step 5: Solve for x
    x = 199,579,456.20/12,897.14
  6. Step 6: Final answer
    x = 15,474.71

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.