Home / 16,699.76-23,042.96-9,988.16

Finding the Fourth Proportional to 16,699.76, 23,042.96 and 9,988.16

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Solution

The fourth proportional to 16,699.76, 23,042.96 and 9,988.16 is: 13,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,699.76 : 23,042.96 = 9,988.16 : x
  2. Step 2: Convert to fraction form
    16,699.76/23,042.96 = 9,988.16/x
  3. Step 3: Cross multiply
    16,699.76x = 23,042.96 × 9,988.16
  4. Step 4: Simplify right side
    16,699.76x = 230,156,771.35
  5. Step 5: Solve for x
    x = 230,156,771.35/16,699.76
  6. Step 6: Final answer
    x = 13,782.04

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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.