Home / 19,153.22-28,710.39-12,131.06

Finding the Fourth Proportional to 19,153.22, 28,710.39 and 12,131.06

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Solution

The fourth proportional to 19,153.22, 28,710.39 and 12,131.06 is: 18,184.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,153.22 : 28,710.39 = 12,131.06 : x
  2. Step 2: Convert to fraction form
    19,153.22/28,710.39 = 12,131.06/x
  3. Step 3: Cross multiply
    19,153.22x = 28,710.39 × 12,131.06
  4. Step 4: Simplify right side
    19,153.22x = 348,287,463.71
  5. Step 5: Solve for x
    x = 348,287,463.71/19,153.22
  6. Step 6: Final answer
    x = 18,184.28

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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.