Home / 12,869.94-19,308.56-10,551.72

Finding the Fourth Proportional to 12,869.94, 19,308.56 and 10,551.72

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Solution

The fourth proportional to 12,869.94, 19,308.56 and 10,551.72 is: 15,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.94 : 19,308.56 = 10,551.72 : x
  2. Step 2: Convert to fraction form
    12,869.94/19,308.56 = 10,551.72/x
  3. Step 3: Cross multiply
    12,869.94x = 19,308.56 × 10,551.72
  4. Step 4: Simplify right side
    12,869.94x = 203,738,518.72
  5. Step 5: Solve for x
    x = 203,738,518.72/12,869.94
  6. Step 6: Final answer
    x = 15,830.57

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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.