Home / 7,947.63-10,972.77-5,116.05

Finding the Fourth Proportional to 7,947.63, 10,972.77 and 5,116.05

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Solution

The fourth proportional to 7,947.63, 10,972.77 and 5,116.05 is: 7,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.63 : 10,972.77 = 5,116.05 : x
  2. Step 2: Convert to fraction form
    7,947.63/10,972.77 = 5,116.05/x
  3. Step 3: Cross multiply
    7,947.63x = 10,972.77 × 5,116.05
  4. Step 4: Simplify right side
    7,947.63x = 56,137,239.96
  5. Step 5: Solve for x
    x = 56,137,239.96/7,947.63
  6. Step 6: Final answer
    x = 7,063.39

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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.