Home / 14,220.66-19,621.17-8,630.58

Finding the Fourth Proportional to 14,220.66, 19,621.17 and 8,630.58

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Solution

The fourth proportional to 14,220.66, 19,621.17 and 8,630.58 is: 11,908.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.66 : 19,621.17 = 8,630.58 : x
  2. Step 2: Convert to fraction form
    14,220.66/19,621.17 = 8,630.58/x
  3. Step 3: Cross multiply
    14,220.66x = 19,621.17 × 8,630.58
  4. Step 4: Simplify right side
    14,220.66x = 169,342,077.38
  5. Step 5: Solve for x
    x = 169,342,077.38/14,220.66
  6. Step 6: Final answer
    x = 11,908.17

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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.