Home / 12,519.07-18,772.53-6,276.40

Finding the Fourth Proportional to 12,519.07, 18,772.53 and 6,276.40

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Solution

The fourth proportional to 12,519.07, 18,772.53 and 6,276.40 is: 9,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.07 : 18,772.53 = 6,276.40 : x
  2. Step 2: Convert to fraction form
    12,519.07/18,772.53 = 6,276.40/x
  3. Step 3: Cross multiply
    12,519.07x = 18,772.53 × 6,276.40
  4. Step 4: Simplify right side
    12,519.07x = 117,823,907.29
  5. Step 5: Solve for x
    x = 117,823,907.29/12,519.07
  6. Step 6: Final answer
    x = 9,411.55

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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.