Home / 17,784.81-26,680.28-7,923.87

Finding the Fourth Proportional to 17,784.81, 26,680.28 and 7,923.87

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Solution

The fourth proportional to 17,784.81, 26,680.28 and 7,923.87 is: 11,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,784.81 : 26,680.28 = 7,923.87 : x
  2. Step 2: Convert to fraction form
    17,784.81/26,680.28 = 7,923.87/x
  3. Step 3: Cross multiply
    17,784.81x = 26,680.28 × 7,923.87
  4. Step 4: Simplify right side
    17,784.81x = 211,411,030.66
  5. Step 5: Solve for x
    x = 211,411,030.66/17,784.81
  6. Step 6: Final answer
    x = 11,887.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.