Home / 13,315.95-19,966.95-3,954.69

Finding the Fourth Proportional to 13,315.95, 19,966.95 and 3,954.69

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Solution

The fourth proportional to 13,315.95, 19,966.95 and 3,954.69 is: 5,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.95 : 19,966.95 = 3,954.69 : x
  2. Step 2: Convert to fraction form
    13,315.95/19,966.95 = 3,954.69/x
  3. Step 3: Cross multiply
    13,315.95x = 19,966.95 × 3,954.69
  4. Step 4: Simplify right side
    13,315.95x = 78,963,097.50
  5. Step 5: Solve for x
    x = 78,963,097.50/13,315.95
  6. Step 6: Final answer
    x = 5,929.96

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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.