Home / 15,407.19-21,260.09-8,692.42

Finding the Fourth Proportional to 15,407.19, 21,260.09 and 8,692.42

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Solution

The fourth proportional to 15,407.19, 21,260.09 and 8,692.42 is: 11,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.19 : 21,260.09 = 8,692.42 : x
  2. Step 2: Convert to fraction form
    15,407.19/21,260.09 = 8,692.42/x
  3. Step 3: Cross multiply
    15,407.19x = 21,260.09 × 8,692.42
  4. Step 4: Simplify right side
    15,407.19x = 184,801,588.06
  5. Step 5: Solve for x
    x = 184,801,588.06/15,407.19
  6. Step 6: Final answer
    x = 11,994.51

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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.