Home / 15,666.70-21,621.44-8,594.50

Finding the Fourth Proportional to 15,666.70, 21,621.44 and 8,594.50

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Solution

The fourth proportional to 15,666.70, 21,621.44 and 8,594.50 is: 11,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,666.70 : 21,621.44 = 8,594.50 : x
  2. Step 2: Convert to fraction form
    15,666.70/21,621.44 = 8,594.50/x
  3. Step 3: Cross multiply
    15,666.70x = 21,621.44 × 8,594.50
  4. Step 4: Simplify right side
    15,666.70x = 185,825,466.08
  5. Step 5: Solve for x
    x = 185,825,466.08/15,666.70
  6. Step 6: Final answer
    x = 11,861.17

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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.