Home / 14,121.93-19,486.17-8,455.35

Finding the Fourth Proportional to 14,121.93, 19,486.17 and 8,455.35

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Solution

The fourth proportional to 14,121.93, 19,486.17 and 8,455.35 is: 11,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.93 : 19,486.17 = 8,455.35 : x
  2. Step 2: Convert to fraction form
    14,121.93/19,486.17 = 8,455.35/x
  3. Step 3: Cross multiply
    14,121.93x = 19,486.17 × 8,455.35
  4. Step 4: Simplify right side
    14,121.93x = 164,762,387.51
  5. Step 5: Solve for x
    x = 164,762,387.51/14,121.93
  6. Step 6: Final answer
    x = 11,667.13

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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.