Home / 15,279.48-21,066.66-12,086.46

Finding the Fourth Proportional to 15,279.48, 21,066.66 and 12,086.46

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Solution

The fourth proportional to 15,279.48, 21,066.66 and 12,086.46 is: 16,664.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279.48 : 21,066.66 = 12,086.46 : x
  2. Step 2: Convert to fraction form
    15,279.48/21,066.66 = 12,086.46/x
  3. Step 3: Cross multiply
    15,279.48x = 21,066.66 × 12,086.46
  4. Step 4: Simplify right side
    15,279.48x = 254,621,343.42
  5. Step 5: Solve for x
    x = 254,621,343.42/15,279.48
  6. Step 6: Final answer
    x = 16,664.27

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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.