Home / 13,742.02-18,963.95-7,454.39

Finding the Fourth Proportional to 13,742.02, 18,963.95 and 7,454.39

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Solution

The fourth proportional to 13,742.02, 18,963.95 and 7,454.39 is: 10,287.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.02 : 18,963.95 = 7,454.39 : x
  2. Step 2: Convert to fraction form
    13,742.02/18,963.95 = 7,454.39/x
  3. Step 3: Cross multiply
    13,742.02x = 18,963.95 × 7,454.39
  4. Step 4: Simplify right side
    13,742.02x = 141,364,679.24
  5. Step 5: Solve for x
    x = 141,364,679.24/13,742.02
  6. Step 6: Final answer
    x = 10,287.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.