Home / 16,678.83-23,012.91-9,966.63

Finding the Fourth Proportional to 16,678.83, 23,012.91 and 9,966.63

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Solution

The fourth proportional to 16,678.83, 23,012.91 and 9,966.63 is: 13,751.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,678.83 : 23,012.91 = 9,966.63 : x
  2. Step 2: Convert to fraction form
    16,678.83/23,012.91 = 9,966.63/x
  3. Step 3: Cross multiply
    16,678.83x = 23,012.91 × 9,966.63
  4. Step 4: Simplify right side
    16,678.83x = 229,361,159.19
  5. Step 5: Solve for x
    x = 229,361,159.19/16,678.83
  6. Step 6: Final answer
    x = 13,751.63

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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.