Home / 9,870.97-13,621.95-5,394.73

Finding the Fourth Proportional to 9,870.97, 13,621.95 and 5,394.73

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Solution

The fourth proportional to 9,870.97, 13,621.95 and 5,394.73 is: 7,444.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,870.97 : 13,621.95 = 5,394.73 : x
  2. Step 2: Convert to fraction form
    9,870.97/13,621.95 = 5,394.73/x
  3. Step 3: Cross multiply
    9,870.97x = 13,621.95 × 5,394.73
  4. Step 4: Simplify right side
    9,870.97x = 73,486,680.33
  5. Step 5: Solve for x
    x = 73,486,680.33/9,870.97
  6. Step 6: Final answer
    x = 7,444.73

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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.