Home / 18,905.76-26,089.31-10,407.11

Finding the Fourth Proportional to 18,905.76, 26,089.31 and 10,407.11

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Solution

The fourth proportional to 18,905.76, 26,089.31 and 10,407.11 is: 14,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.76 : 26,089.31 = 10,407.11 : x
  2. Step 2: Convert to fraction form
    18,905.76/26,089.31 = 10,407.11/x
  3. Step 3: Cross multiply
    18,905.76x = 26,089.31 × 10,407.11
  4. Step 4: Simplify right side
    18,905.76x = 271,514,214.57
  5. Step 5: Solve for x
    x = 271,514,214.57/18,905.76
  6. Step 6: Final answer
    x = 14,361.45

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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.