Home / 7,909.32-11,864.70-4,012.68

Finding the Fourth Proportional to 7,909.32, 11,864.70 and 4,012.68

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Solution

The fourth proportional to 7,909.32, 11,864.70 and 4,012.68 is: 6,019.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.32 : 11,864.70 = 4,012.68 : x
  2. Step 2: Convert to fraction form
    7,909.32/11,864.70 = 4,012.68/x
  3. Step 3: Cross multiply
    7,909.32x = 11,864.70 × 4,012.68
  4. Step 4: Simplify right side
    7,909.32x = 47,609,244.40
  5. Step 5: Solve for x
    x = 47,609,244.40/7,909.32
  6. Step 6: Final answer
    x = 6,019.39

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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.