Home / 15,718.96-21,692.10-9,004.26

Finding the Fourth Proportional to 15,718.96, 21,692.10 and 9,004.26

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Solution

The fourth proportional to 15,718.96, 21,692.10 and 9,004.26 is: 12,425.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718.96 : 21,692.10 = 9,004.26 : x
  2. Step 2: Convert to fraction form
    15,718.96/21,692.10 = 9,004.26/x
  3. Step 3: Cross multiply
    15,718.96x = 21,692.10 × 9,004.26
  4. Step 4: Simplify right side
    15,718.96x = 195,321,423.46
  5. Step 5: Solve for x
    x = 195,321,423.46/15,718.96
  6. Step 6: Final answer
    x = 12,425.85

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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.