Home / 14,288.90-21,388.48-9,820.44

Finding the Fourth Proportional to 14,288.90, 21,388.48 and 9,820.44

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Solution

The fourth proportional to 14,288.90, 21,388.48 and 9,820.44 is: 14,699.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.90 : 21,388.48 = 9,820.44 : x
  2. Step 2: Convert to fraction form
    14,288.90/21,388.48 = 9,820.44/x
  3. Step 3: Cross multiply
    14,288.90x = 21,388.48 × 9,820.44
  4. Step 4: Simplify right side
    14,288.90x = 210,044,284.53
  5. Step 5: Solve for x
    x = 210,044,284.53/14,288.90
  6. Step 6: Final answer
    x = 14,699.82

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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.