Home / 12,870.74-19,273.44-10,785.26

Finding the Fourth Proportional to 12,870.74, 19,273.44 and 10,785.26

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Solution

The fourth proportional to 12,870.74, 19,273.44 and 10,785.26 is: 16,150.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,870.74 : 19,273.44 = 10,785.26 : x
  2. Step 2: Convert to fraction form
    12,870.74/19,273.44 = 10,785.26/x
  3. Step 3: Cross multiply
    12,870.74x = 19,273.44 × 10,785.26
  4. Step 4: Simplify right side
    12,870.74x = 207,869,061.49
  5. Step 5: Solve for x
    x = 207,869,061.49/12,870.74
  6. Step 6: Final answer
    x = 16,150.51

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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.