Home / 15,474.63-21,355.02-8,401.05

Finding the Fourth Proportional to 15,474.63, 21,355.02 and 8,401.05

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Solution

The fourth proportional to 15,474.63, 21,355.02 and 8,401.05 is: 11,593.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.63 : 21,355.02 = 8,401.05 : x
  2. Step 2: Convert to fraction form
    15,474.63/21,355.02 = 8,401.05/x
  3. Step 3: Cross multiply
    15,474.63x = 21,355.02 × 8,401.05
  4. Step 4: Simplify right side
    15,474.63x = 179,404,590.77
  5. Step 5: Solve for x
    x = 179,404,590.77/15,474.63
  6. Step 6: Final answer
    x = 11,593.47

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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.