Home / 13,316.97-19,968.49-3,955.70

Finding the Fourth Proportional to 13,316.97, 19,968.49 and 3,955.70

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Solution

The fourth proportional to 13,316.97, 19,968.49 and 3,955.70 is: 5,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.97 : 19,968.49 = 3,955.70 : x
  2. Step 2: Convert to fraction form
    13,316.97/19,968.49 = 3,955.70/x
  3. Step 3: Cross multiply
    13,316.97x = 19,968.49 × 3,955.70
  4. Step 4: Simplify right side
    13,316.97x = 78,989,410.76
  5. Step 5: Solve for x
    x = 78,989,410.76/13,316.97
  6. Step 6: Final answer
    x = 5,931.48

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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.