Home / 15,647.72-21,587.51-8,932.01

Finding the Fourth Proportional to 15,647.72, 21,587.51 and 8,932.01

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Solution

The fourth proportional to 15,647.72, 21,587.51 and 8,932.01 is: 12,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.72 : 21,587.51 = 8,932.01 : x
  2. Step 2: Convert to fraction form
    15,647.72/21,587.51 = 8,932.01/x
  3. Step 3: Cross multiply
    15,647.72x = 21,587.51 × 8,932.01
  4. Step 4: Simplify right side
    15,647.72x = 192,819,769.59
  5. Step 5: Solve for x
    x = 192,819,769.59/15,647.72
  6. Step 6: Final answer
    x = 12,322.55

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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.