Home / 14,653.32-20,220.30-8,683.98

Finding the Fourth Proportional to 14,653.32, 20,220.30 and 8,683.98

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Solution

The fourth proportional to 14,653.32, 20,220.30 and 8,683.98 is: 11,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.32 : 20,220.30 = 8,683.98 : x
  2. Step 2: Convert to fraction form
    14,653.32/20,220.30 = 8,683.98/x
  3. Step 3: Cross multiply
    14,653.32x = 20,220.30 × 8,683.98
  4. Step 4: Simplify right side
    14,653.32x = 175,592,680.79
  5. Step 5: Solve for x
    x = 175,592,680.79/14,653.32
  6. Step 6: Final answer
    x = 11,983.13

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Double scale
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Similar ratio
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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.