Home / 13,510.22-18,643.79-7,542.45

Finding the Fourth Proportional to 13,510.22, 18,643.79 and 7,542.45

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Solution

The fourth proportional to 13,510.22, 18,643.79 and 7,542.45 is: 10,408.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.22 : 18,643.79 = 7,542.45 : x
  2. Step 2: Convert to fraction form
    13,510.22/18,643.79 = 7,542.45/x
  3. Step 3: Cross multiply
    13,510.22x = 18,643.79 × 7,542.45
  4. Step 4: Simplify right side
    13,510.22x = 140,619,816.17
  5. Step 5: Solve for x
    x = 140,619,816.17/13,510.22
  6. Step 6: Final answer
    x = 10,408.41

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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.