Home / 14,051.90-21,077.85-5,288.78

Finding the Fourth Proportional to 14,051.90, 21,077.85 and 5,288.78

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Solution

The fourth proportional to 14,051.90, 21,077.85 and 5,288.78 is: 7,933.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,051.90 : 21,077.85 = 5,288.78 : x
  2. Step 2: Convert to fraction form
    14,051.90/21,077.85 = 5,288.78/x
  3. Step 3: Cross multiply
    14,051.90x = 21,077.85 × 5,288.78
  4. Step 4: Simplify right side
    14,051.90x = 111,476,111.52
  5. Step 5: Solve for x
    x = 111,476,111.52/14,051.90
  6. Step 6: Final answer
    x = 7,933.17

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1.5x scale

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.