Home / 13,139.09-19,711.61-4,374.35

Finding the Fourth Proportional to 13,139.09, 19,711.61 and 4,374.35

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Solution

The fourth proportional to 13,139.09, 19,711.61 and 4,374.35 is: 6,562.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.09 : 19,711.61 = 4,374.35 : x
  2. Step 2: Convert to fraction form
    13,139.09/19,711.61 = 4,374.35/x
  3. Step 3: Cross multiply
    13,139.09x = 19,711.61 × 4,374.35
  4. Step 4: Simplify right side
    13,139.09x = 86,225,525.01
  5. Step 5: Solve for x
    x = 86,225,525.01/13,139.09
  6. Step 6: Final answer
    x = 6,562.52

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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.