Home / 14,890.40-20,549.28-9,863.36

Finding the Fourth Proportional to 14,890.40, 20,549.28 and 9,863.36

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Solution

The fourth proportional to 14,890.40, 20,549.28 and 9,863.36 is: 13,611.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,890.40 : 20,549.28 = 9,863.36 : x
  2. Step 2: Convert to fraction form
    14,890.40/20,549.28 = 9,863.36/x
  3. Step 3: Cross multiply
    14,890.40x = 20,549.28 × 9,863.36
  4. Step 4: Simplify right side
    14,890.40x = 202,684,946.38
  5. Step 5: Solve for x
    x = 202,684,946.38/14,890.40
  6. Step 6: Final answer
    x = 13,611.79

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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.