Home / 14,330.93-19,780.81-8,665.68

Finding the Fourth Proportional to 14,330.93, 19,780.81 and 8,665.68

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Solution

The fourth proportional to 14,330.93, 19,780.81 and 8,665.68 is: 11,961.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,330.93 : 19,780.81 = 8,665.68 : x
  2. Step 2: Convert to fraction form
    14,330.93/19,780.81 = 8,665.68/x
  3. Step 3: Cross multiply
    14,330.93x = 19,780.81 × 8,665.68
  4. Step 4: Simplify right side
    14,330.93x = 171,414,222.11
  5. Step 5: Solve for x
    x = 171,414,222.11/14,330.93
  6. Step 6: Final answer
    x = 11,961.14

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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.