Home / 13,289.49-19,937.51-3,929.46

Finding the Fourth Proportional to 13,289.49, 19,937.51 and 3,929.46

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Solution

The fourth proportional to 13,289.49, 19,937.51 and 3,929.46 is: 5,895.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.49 : 19,937.51 = 3,929.46 : x
  2. Step 2: Convert to fraction form
    13,289.49/19,937.51 = 3,929.46/x
  3. Step 3: Cross multiply
    13,289.49x = 19,937.51 × 3,929.46
  4. Step 4: Simplify right side
    13,289.49x = 78,343,628.40
  5. Step 5: Solve for x
    x = 78,343,628.40/13,289.49
  6. Step 6: Final answer
    x = 5,895.16

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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.