Home / 15,257.52-22,855.50-12,785.40

Finding the Fourth Proportional to 15,257.52, 22,855.50 and 12,785.40

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Solution

The fourth proportional to 15,257.52, 22,855.50 and 12,785.40 is: 19,152.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,257.52 : 22,855.50 = 12,785.40 : x
  2. Step 2: Convert to fraction form
    15,257.52/22,855.50 = 12,785.40/x
  3. Step 3: Cross multiply
    15,257.52x = 22,855.50 × 12,785.40
  4. Step 4: Simplify right side
    15,257.52x = 292,216,709.70
  5. Step 5: Solve for x
    x = 292,216,709.70/15,257.52
  6. Step 6: Final answer
    x = 19,152.31

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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.