Home / 12,868.61-17,742.78-10,350.86

Finding the Fourth Proportional to 12,868.61, 17,742.78 and 10,350.86

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Solution

The fourth proportional to 12,868.61, 17,742.78 and 10,350.86 is: 14,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.61 : 17,742.78 = 10,350.86 : x
  2. Step 2: Convert to fraction form
    12,868.61/17,742.78 = 10,350.86/x
  3. Step 3: Cross multiply
    12,868.61x = 17,742.78 × 10,350.86
  4. Step 4: Simplify right side
    12,868.61x = 183,652,943.08
  5. Step 5: Solve for x
    x = 183,652,943.08/12,868.61
  6. Step 6: Final answer
    x = 14,271.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.