Home / 19,110.64-28,638.25-10,772.87

Finding the Fourth Proportional to 19,110.64, 28,638.25 and 10,772.87

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Solution

The fourth proportional to 19,110.64, 28,638.25 and 10,772.87 is: 16,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.64 : 28,638.25 = 10,772.87 : x
  2. Step 2: Convert to fraction form
    19,110.64/28,638.25 = 10,772.87/x
  3. Step 3: Cross multiply
    19,110.64x = 28,638.25 × 10,772.87
  4. Step 4: Simplify right side
    19,110.64x = 308,516,268.81
  5. Step 5: Solve for x
    x = 308,516,268.81/19,110.64
  6. Step 6: Final answer
    x = 16,143.69

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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.