Home / 15,558.30-21,470.74-8,484.70

Finding the Fourth Proportional to 15,558.30, 21,470.74 and 8,484.70

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Solution

The fourth proportional to 15,558.30, 21,470.74 and 8,484.70 is: 11,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.30 : 21,470.74 = 8,484.70 : x
  2. Step 2: Convert to fraction form
    15,558.30/21,470.74 = 8,484.70/x
  3. Step 3: Cross multiply
    15,558.30x = 21,470.74 × 8,484.70
  4. Step 4: Simplify right side
    15,558.30x = 182,172,787.68
  5. Step 5: Solve for x
    x = 182,172,787.68/15,558.30
  6. Step 6: Final answer
    x = 11,709.04

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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.