Home / 15,476.94-21,358.02-8,403.36

Finding the Fourth Proportional to 15,476.94, 21,358.02 and 8,403.36

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Solution

The fourth proportional to 15,476.94, 21,358.02 and 8,403.36 is: 11,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.94 : 21,358.02 = 8,403.36 : x
  2. Step 2: Convert to fraction form
    15,476.94/21,358.02 = 8,403.36/x
  3. Step 3: Cross multiply
    15,476.94x = 21,358.02 × 8,403.36
  4. Step 4: Simplify right side
    15,476.94x = 179,479,130.95
  5. Step 5: Solve for x
    x = 179,479,130.95/15,476.94
  6. Step 6: Final answer
    x = 11,596.55

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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.