Home / 14,688.81-20,279.97-11,325.42

Finding the Fourth Proportional to 14,688.81, 20,279.97 and 11,325.42

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Solution

The fourth proportional to 14,688.81, 20,279.97 and 11,325.42 is: 15,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.81 : 20,279.97 = 11,325.42 : x
  2. Step 2: Convert to fraction form
    14,688.81/20,279.97 = 11,325.42/x
  3. Step 3: Cross multiply
    14,688.81x = 20,279.97 × 11,325.42
  4. Step 4: Simplify right side
    14,688.81x = 229,679,177.84
  5. Step 5: Solve for x
    x = 229,679,177.84/14,688.81
  6. Step 6: Final answer
    x = 15,636.34

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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.