Home / 7,101.40-10,656.15-4,911.70

Finding the Fourth Proportional to 7,101.40, 10,656.15 and 4,911.70

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Solution

The fourth proportional to 7,101.40, 10,656.15 and 4,911.70 is: 7,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.40 : 10,656.15 = 4,911.70 : x
  2. Step 2: Convert to fraction form
    7,101.40/10,656.15 = 4,911.70/x
  3. Step 3: Cross multiply
    7,101.40x = 10,656.15 × 4,911.70
  4. Step 4: Simplify right side
    7,101.40x = 52,339,811.96
  5. Step 5: Solve for x
    x = 52,339,811.96/7,101.40
  6. Step 6: Final answer
    x = 7,370.35

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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.