Home / 19,152.40-28,731.48-9,787.36

Finding the Fourth Proportional to 19,152.40, 28,731.48 and 9,787.36

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Solution

The fourth proportional to 19,152.40, 28,731.48 and 9,787.36 is: 14,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152.40 : 28,731.48 = 9,787.36 : x
  2. Step 2: Convert to fraction form
    19,152.40/28,731.48 = 9,787.36/x
  3. Step 3: Cross multiply
    19,152.40x = 28,731.48 × 9,787.36
  4. Step 4: Simplify right side
    19,152.40x = 281,205,338.09
  5. Step 5: Solve for x
    x = 281,205,338.09/19,152.40
  6. Step 6: Final answer
    x = 14,682.51

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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.