Home / 9,947.40-13,712.67-7,290.60

Finding the Fourth Proportional to 9,947.40, 13,712.67 and 7,290.60

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Solution

The fourth proportional to 9,947.40, 13,712.67 and 7,290.60 is: 10,050.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.40 : 13,712.67 = 7,290.60 : x
  2. Step 2: Convert to fraction form
    9,947.40/13,712.67 = 7,290.60/x
  3. Step 3: Cross multiply
    9,947.40x = 13,712.67 × 7,290.60
  4. Step 4: Simplify right side
    9,947.40x = 99,973,591.90
  5. Step 5: Solve for x
    x = 99,973,591.90/9,947.40
  6. Step 6: Final answer
    x = 10,050.22

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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.