Home / 12,570.36-17,353.50-9,731.40

Finding the Fourth Proportional to 12,570.36, 17,353.50 and 9,731.40

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Solution

The fourth proportional to 12,570.36, 17,353.50 and 9,731.40 is: 13,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.36 : 17,353.50 = 9,731.40 : x
  2. Step 2: Convert to fraction form
    12,570.36/17,353.50 = 9,731.40/x
  3. Step 3: Cross multiply
    12,570.36x = 17,353.50 × 9,731.40
  4. Step 4: Simplify right side
    12,570.36x = 168,873,849.90
  5. Step 5: Solve for x
    x = 168,873,849.90/12,570.36
  6. Step 6: Final answer
    x = 13,434.29

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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.