Home / 15,475.35-21,356.02-8,401.62

Finding the Fourth Proportional to 15,475.35, 21,356.02 and 8,401.62

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Solution

The fourth proportional to 15,475.35, 21,356.02 and 8,401.62 is: 11,594.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,475.35 : 21,356.02 = 8,401.62 : x
  2. Step 2: Convert to fraction form
    15,475.35/21,356.02 = 8,401.62/x
  3. Step 3: Cross multiply
    15,475.35x = 21,356.02 × 8,401.62
  4. Step 4: Simplify right side
    15,475.35x = 179,425,164.75
  5. Step 5: Solve for x
    x = 179,425,164.75/15,475.35
  6. Step 6: Final answer
    x = 11,594.26

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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.