Home / 14,081.43-19,431.06-8,415.06

Finding the Fourth Proportional to 14,081.43, 19,431.06 and 8,415.06

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Solution

The fourth proportional to 14,081.43, 19,431.06 and 8,415.06 is: 11,612.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.43 : 19,431.06 = 8,415.06 : x
  2. Step 2: Convert to fraction form
    14,081.43/19,431.06 = 8,415.06/x
  3. Step 3: Cross multiply
    14,081.43x = 19,431.06 × 8,415.06
  4. Step 4: Simplify right side
    14,081.43x = 163,513,535.76
  5. Step 5: Solve for x
    x = 163,513,535.76/14,081.43
  6. Step 6: Final answer
    x = 11,612.00

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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.