Home / 7,447.21-11,154.41-4,970.43

Finding the Fourth Proportional to 7,447.21, 11,154.41 and 4,970.43

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Solution

The fourth proportional to 7,447.21, 11,154.41 and 4,970.43 is: 7,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.21 : 11,154.41 = 4,970.43 : x
  2. Step 2: Convert to fraction form
    7,447.21/11,154.41 = 4,970.43/x
  3. Step 3: Cross multiply
    7,447.21x = 11,154.41 × 4,970.43
  4. Step 4: Simplify right side
    7,447.21x = 55,442,207.88
  5. Step 5: Solve for x
    x = 55,442,207.88/7,447.21
  6. Step 6: Final answer
    x = 7,444.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.