Home / 12,402.22-18,688.59-10,258.96

Finding the Fourth Proportional to 12,402.22, 18,688.59 and 10,258.96

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Solution

The fourth proportional to 12,402.22, 18,688.59 and 10,258.96 is: 15,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.22 : 18,688.59 = 10,258.96 : x
  2. Step 2: Convert to fraction form
    12,402.22/18,688.59 = 10,258.96/x
  3. Step 3: Cross multiply
    12,402.22x = 18,688.59 × 10,258.96
  4. Step 4: Simplify right side
    12,402.22x = 191,725,497.27
  5. Step 5: Solve for x
    x = 191,725,497.27/12,402.22
  6. Step 6: Final answer
    x = 15,458.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.