Home / 19,124.91-28,687.64-5,085.18

Finding the Fourth Proportional to 19,124.91, 28,687.64 and 5,085.18

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Solution

The fourth proportional to 19,124.91, 28,687.64 and 5,085.18 is: 7,627.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,124.91 : 28,687.64 = 5,085.18 : x
  2. Step 2: Convert to fraction form
    19,124.91/28,687.64 = 5,085.18/x
  3. Step 3: Cross multiply
    19,124.91x = 28,687.64 × 5,085.18
  4. Step 4: Simplify right side
    19,124.91x = 145,881,787.75
  5. Step 5: Solve for x
    x = 145,881,787.75/19,124.91
  6. Step 6: Final answer
    x = 7,627.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.