Home / 13,197.24-18,209.88-7,529.40

Finding the Fourth Proportional to 13,197.24, 18,209.88 and 7,529.40

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Solution

The fourth proportional to 13,197.24, 18,209.88 and 7,529.40 is: 10,389.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.24 : 18,209.88 = 7,529.40 : x
  2. Step 2: Convert to fraction form
    13,197.24/18,209.88 = 7,529.40/x
  3. Step 3: Cross multiply
    13,197.24x = 18,209.88 × 7,529.40
  4. Step 4: Simplify right side
    13,197.24x = 137,109,470.47
  5. Step 5: Solve for x
    x = 137,109,470.47/13,197.24
  6. Step 6: Final answer
    x = 10,389.25

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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.