Home / 15,639.87-21,592.82-12,048.06

Finding the Fourth Proportional to 15,639.87, 21,592.82 and 12,048.06

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Solution

The fourth proportional to 15,639.87, 21,592.82 and 12,048.06 is: 16,633.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.87 : 21,592.82 = 12,048.06 : x
  2. Step 2: Convert to fraction form
    15,639.87/21,592.82 = 12,048.06/x
  3. Step 3: Cross multiply
    15,639.87x = 21,592.82 × 12,048.06
  4. Step 4: Simplify right side
    15,639.87x = 260,151,705.02
  5. Step 5: Solve for x
    x = 260,151,705.02/15,639.87
  6. Step 6: Final answer
    x = 16,633.88

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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.