Home / 9,947.58-13,732.40-6,315.48

Finding the Fourth Proportional to 9,947.58, 13,732.40 and 6,315.48

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Solution

The fourth proportional to 9,947.58, 13,732.40 and 6,315.48 is: 8,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.58 : 13,732.40 = 6,315.48 : x
  2. Step 2: Convert to fraction form
    9,947.58/13,732.40 = 6,315.48/x
  3. Step 3: Cross multiply
    9,947.58x = 13,732.40 × 6,315.48
  4. Step 4: Simplify right side
    9,947.58x = 86,726,697.55
  5. Step 5: Solve for x
    x = 86,726,697.55/9,947.58
  6. Step 6: Final answer
    x = 8,718.37

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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.