Home / 13,206.53-18,225.51-7,542.20

Finding the Fourth Proportional to 13,206.53, 18,225.51 and 7,542.20

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Solution

The fourth proportional to 13,206.53, 18,225.51 and 7,542.20 is: 10,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.53 : 18,225.51 = 7,542.20 : x
  2. Step 2: Convert to fraction form
    13,206.53/18,225.51 = 7,542.20/x
  3. Step 3: Cross multiply
    13,206.53x = 18,225.51 × 7,542.20
  4. Step 4: Simplify right side
    13,206.53x = 137,460,441.52
  5. Step 5: Solve for x
    x = 137,460,441.52/13,206.53
  6. Step 6: Final answer
    x = 10,408.52

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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.