Home / 21,786.30-32,666.27-9,776.25

Finding the Fourth Proportional to 21,786.30, 32,666.27 and 9,776.25

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Solution

The fourth proportional to 21,786.30, 32,666.27 and 9,776.25 is: 14,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,786.30 : 32,666.27 = 9,776.25 : x
  2. Step 2: Convert to fraction form
    21,786.30/32,666.27 = 9,776.25/x
  3. Step 3: Cross multiply
    21,786.30x = 32,666.27 × 9,776.25
  4. Step 4: Simplify right side
    21,786.30x = 319,353,409.87
  5. Step 5: Solve for x
    x = 319,353,409.87/21,786.30
  6. Step 6: Final answer
    x = 14,658.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.