Home / 15,647.50-21,593.55-8,574.20

Finding the Fourth Proportional to 15,647.50, 21,593.55 and 8,574.20

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Solution

The fourth proportional to 15,647.50, 21,593.55 and 8,574.20 is: 11,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.50 : 21,593.55 = 8,574.20 : x
  2. Step 2: Convert to fraction form
    15,647.50/21,593.55 = 8,574.20/x
  3. Step 3: Cross multiply
    15,647.50x = 21,593.55 × 8,574.20
  4. Step 4: Simplify right side
    15,647.50x = 185,147,416.41
  5. Step 5: Solve for x
    x = 185,147,416.41/15,647.50
  6. Step 6: Final answer
    x = 11,832.40

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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.