Home / 12,948.20-19,422.30-9,837.80

Finding the Fourth Proportional to 12,948.20, 19,422.30 and 9,837.80

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Solution

The fourth proportional to 12,948.20, 19,422.30 and 9,837.80 is: 14,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.20 : 19,422.30 = 9,837.80 : x
  2. Step 2: Convert to fraction form
    12,948.20/19,422.30 = 9,837.80/x
  3. Step 3: Cross multiply
    12,948.20x = 19,422.30 × 9,837.80
  4. Step 4: Simplify right side
    12,948.20x = 191,072,702.94
  5. Step 5: Solve for x
    x = 191,072,702.94/12,948.20
  6. Step 6: Final answer
    x = 14,756.70

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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.