Home / 15,698.10-21,662.67-8,624.62

Finding the Fourth Proportional to 15,698.10, 21,662.67 and 8,624.62

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Solution

The fourth proportional to 15,698.10, 21,662.67 and 8,624.62 is: 11,901.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.10 : 21,662.67 = 8,624.62 : x
  2. Step 2: Convert to fraction form
    15,698.10/21,662.67 = 8,624.62/x
  3. Step 3: Cross multiply
    15,698.10x = 21,662.67 × 8,624.62
  4. Step 4: Simplify right side
    15,698.10x = 186,832,296.94
  5. Step 5: Solve for x
    x = 186,832,296.94/15,698.10
  6. Step 6: Final answer
    x = 11,901.59

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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.