Home / 15,406.59-21,261.03-8,692.22

Finding the Fourth Proportional to 15,406.59, 21,261.03 and 8,692.22

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Solution

The fourth proportional to 15,406.59, 21,261.03 and 8,692.22 is: 11,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.59 : 21,261.03 = 8,692.22 : x
  2. Step 2: Convert to fraction form
    15,406.59/21,261.03 = 8,692.22/x
  3. Step 3: Cross multiply
    15,406.59x = 21,261.03 × 8,692.22
  4. Step 4: Simplify right side
    15,406.59x = 184,805,550.19
  5. Step 5: Solve for x
    x = 184,805,550.19/15,406.59
  6. Step 6: Final answer
    x = 11,995.23

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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.