Home / 15,647.72-21,593.58-8,574.08

Finding the Fourth Proportional to 15,647.72, 21,593.58 and 8,574.08

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Solution

The fourth proportional to 15,647.72, 21,593.58 and 8,574.08 is: 11,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.72 : 21,593.58 = 8,574.08 : x
  2. Step 2: Convert to fraction form
    15,647.72/21,593.58 = 8,574.08/x
  3. Step 3: Cross multiply
    15,647.72x = 21,593.58 × 8,574.08
  4. Step 4: Simplify right side
    15,647.72x = 185,145,082.41
  5. Step 5: Solve for x
    x = 185,145,082.41/15,647.72
  6. Step 6: Final answer
    x = 11,832.08

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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.