Home / 13,247.54-19,871.23-3,386.80

Finding the Fourth Proportional to 13,247.54, 19,871.23 and 3,386.80

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Solution

The fourth proportional to 13,247.54, 19,871.23 and 3,386.80 is: 5,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.54 : 19,871.23 = 3,386.80 : x
  2. Step 2: Convert to fraction form
    13,247.54/19,871.23 = 3,386.80/x
  3. Step 3: Cross multiply
    13,247.54x = 19,871.23 × 3,386.80
  4. Step 4: Simplify right side
    13,247.54x = 67,299,881.76
  5. Step 5: Solve for x
    x = 67,299,881.76/13,247.54
  6. Step 6: Final answer
    x = 5,080.18

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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.