Home / 18,909.90-26,096.30-10,412.91

Finding the Fourth Proportional to 18,909.90, 26,096.30 and 10,412.91

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Solution

The fourth proportional to 18,909.90, 26,096.30 and 10,412.91 is: 14,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.90 : 26,096.30 = 10,412.91 : x
  2. Step 2: Convert to fraction form
    18,909.90/26,096.30 = 10,412.91/x
  3. Step 3: Cross multiply
    18,909.90x = 26,096.30 × 10,412.91
  4. Step 4: Simplify right side
    18,909.90x = 271,738,371.17
  5. Step 5: Solve for x
    x = 271,738,371.17/18,909.90
  6. Step 6: Final answer
    x = 14,370.16

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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.