Home / 16,768.48-23,140.80-9,215.50

Finding the Fourth Proportional to 16,768.48, 23,140.80 and 9,215.50

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Solution

The fourth proportional to 16,768.48, 23,140.80 and 9,215.50 is: 12,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,768.48 : 23,140.80 = 9,215.50 : x
  2. Step 2: Convert to fraction form
    16,768.48/23,140.80 = 9,215.50/x
  3. Step 3: Cross multiply
    16,768.48x = 23,140.80 × 9,215.50
  4. Step 4: Simplify right side
    16,768.48x = 213,254,042.40
  5. Step 5: Solve for x
    x = 213,254,042.40/16,768.48
  6. Step 6: Final answer
    x = 12,717.55

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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.