Home / 14,090-19,444.16-8,121.63

Finding the Fourth Proportional to 14,090, 19,444.16 and 8,121.63

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Solution

The fourth proportional to 14,090, 19,444.16 and 8,121.63 is: 11,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090 : 19,444.16 = 8,121.63 : x
  2. Step 2: Convert to fraction form
    14,090/19,444.16 = 8,121.63/x
  3. Step 3: Cross multiply
    14,090x = 19,444.16 × 8,121.63
  4. Step 4: Simplify right side
    14,090x = 157,918,273.18
  5. Step 5: Solve for x
    x = 157,918,273.18/14,090
  6. Step 6: Final answer
    x = 11,207.83

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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.