Home / 13,389.24-20,083.77-10,470

Finding the Fourth Proportional to 13,389.24, 20,083.77 and 10,470

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Solution

The fourth proportional to 13,389.24, 20,083.77 and 10,470 is: 15,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.24 : 20,083.77 = 10,470 : x
  2. Step 2: Convert to fraction form
    13,389.24/20,083.77 = 10,470/x
  3. Step 3: Cross multiply
    13,389.24x = 20,083.77 × 10,470
  4. Step 4: Simplify right side
    13,389.24x = 210,277,071.90
  5. Step 5: Solve for x
    x = 210,277,071.90/13,389.24
  6. Step 6: Final answer
    x = 15,704.93

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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.