Home / 15,698.87-21,663.82-8,624.53

Finding the Fourth Proportional to 15,698.87, 21,663.82 and 8,624.53

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Solution

The fourth proportional to 15,698.87, 21,663.82 and 8,624.53 is: 11,901.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.87 : 21,663.82 = 8,624.53 : x
  2. Step 2: Convert to fraction form
    15,698.87/21,663.82 = 8,624.53/x
  3. Step 3: Cross multiply
    15,698.87x = 21,663.82 × 8,624.53
  4. Step 4: Simplify right side
    15,698.87x = 186,840,265.50
  5. Step 5: Solve for x
    x = 186,840,265.50/15,698.87
  6. Step 6: Final answer
    x = 11,901.51

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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.