Home / 14,079.90-19,428.09-8,110.40

Finding the Fourth Proportional to 14,079.90, 19,428.09 and 8,110.40

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Solution

The fourth proportional to 14,079.90, 19,428.09 and 8,110.40 is: 11,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.90 : 19,428.09 = 8,110.40 : x
  2. Step 2: Convert to fraction form
    14,079.90/19,428.09 = 8,110.40/x
  3. Step 3: Cross multiply
    14,079.90x = 19,428.09 × 8,110.40
  4. Step 4: Simplify right side
    14,079.90x = 157,569,581.14
  5. Step 5: Solve for x
    x = 157,569,581.14/14,079.90
  6. Step 6: Final answer
    x = 11,191.10

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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.