Home / 15,497.68-21,380.20-9,206.64

Finding the Fourth Proportional to 15,497.68, 21,380.20 and 9,206.64

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Solution

The fourth proportional to 15,497.68, 21,380.20 and 9,206.64 is: 12,701.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,497.68 : 21,380.20 = 9,206.64 : x
  2. Step 2: Convert to fraction form
    15,497.68/21,380.20 = 9,206.64/x
  3. Step 3: Cross multiply
    15,497.68x = 21,380.20 × 9,206.64
  4. Step 4: Simplify right side
    15,497.68x = 196,839,804.53
  5. Step 5: Solve for x
    x = 196,839,804.53/15,497.68
  6. Step 6: Final answer
    x = 12,701.24

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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.