Home / 12,906.28-19,346.35-8,746.71

Finding the Fourth Proportional to 12,906.28, 19,346.35 and 8,746.71

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Solution

The fourth proportional to 12,906.28, 19,346.35 and 8,746.71 is: 13,111.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.28 : 19,346.35 = 8,746.71 : x
  2. Step 2: Convert to fraction form
    12,906.28/19,346.35 = 8,746.71/x
  3. Step 3: Cross multiply
    12,906.28x = 19,346.35 × 8,746.71
  4. Step 4: Simplify right side
    12,906.28x = 169,216,913.01
  5. Step 5: Solve for x
    x = 169,216,913.01/12,906.28
  6. Step 6: Final answer
    x = 13,111.21

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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.