Home / 13,348.54-18,421.59-7,758.46

Finding the Fourth Proportional to 13,348.54, 18,421.59 and 7,758.46

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Solution

The fourth proportional to 13,348.54, 18,421.59 and 7,758.46 is: 10,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.54 : 18,421.59 = 7,758.46 : x
  2. Step 2: Convert to fraction form
    13,348.54/18,421.59 = 7,758.46/x
  3. Step 3: Cross multiply
    13,348.54x = 18,421.59 × 7,758.46
  4. Step 4: Simplify right side
    13,348.54x = 142,923,169.15
  5. Step 5: Solve for x
    x = 142,923,169.15/13,348.54
  6. Step 6: Final answer
    x = 10,707.03

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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.