Home / 15,697.94-21,663.14-8,624.36

Finding the Fourth Proportional to 15,697.94, 21,663.14 and 8,624.36

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Solution

The fourth proportional to 15,697.94, 21,663.14 and 8,624.36 is: 11,901.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697.94 : 21,663.14 = 8,624.36 : x
  2. Step 2: Convert to fraction form
    15,697.94/21,663.14 = 8,624.36/x
  3. Step 3: Cross multiply
    15,697.94x = 21,663.14 × 8,624.36
  4. Step 4: Simplify right side
    15,697.94x = 186,830,631.34
  5. Step 5: Solve for x
    x = 186,830,631.34/15,697.94
  6. Step 6: Final answer
    x = 11,901.61

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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.