Home / 9,421.88-13,002.54-5,443.43

Finding the Fourth Proportional to 9,421.88, 13,002.54 and 5,443.43

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Solution

The fourth proportional to 9,421.88, 13,002.54 and 5,443.43 is: 7,512.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.88 : 13,002.54 = 5,443.43 : x
  2. Step 2: Convert to fraction form
    9,421.88/13,002.54 = 5,443.43/x
  3. Step 3: Cross multiply
    9,421.88x = 13,002.54 × 5,443.43
  4. Step 4: Simplify right side
    9,421.88x = 70,778,416.31
  5. Step 5: Solve for x
    x = 70,778,416.31/9,421.88
  6. Step 6: Final answer
    x = 7,512.13

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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.