Home / 19,319.58-28,975.95-8,787.13

Finding the Fourth Proportional to 19,319.58, 28,975.95 and 8,787.13

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Solution

The fourth proportional to 19,319.58, 28,975.95 and 8,787.13 is: 13,179.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.58 : 28,975.95 = 8,787.13 : x
  2. Step 2: Convert to fraction form
    19,319.58/28,975.95 = 8,787.13/x
  3. Step 3: Cross multiply
    19,319.58x = 28,975.95 × 8,787.13
  4. Step 4: Simplify right side
    19,319.58x = 254,615,439.52
  5. Step 5: Solve for x
    x = 254,615,439.52/19,319.58
  6. Step 6: Final answer
    x = 13,179.14

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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.