Home / 15,476.21-21,358.46-9,509.95

Finding the Fourth Proportional to 15,476.21, 21,358.46 and 9,509.95

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Solution

The fourth proportional to 15,476.21, 21,358.46 and 9,509.95 is: 13,124.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.21 : 21,358.46 = 9,509.95 : x
  2. Step 2: Convert to fraction form
    15,476.21/21,358.46 = 9,509.95/x
  3. Step 3: Cross multiply
    15,476.21x = 21,358.46 × 9,509.95
  4. Step 4: Simplify right side
    15,476.21x = 203,117,785.73
  5. Step 5: Solve for x
    x = 203,117,785.73/15,476.21
  6. Step 6: Final answer
    x = 13,124.52

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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.