Home / 14,862.61-20,511.03-8,490.25

Finding the Fourth Proportional to 14,862.61, 20,511.03 and 8,490.25

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Solution

The fourth proportional to 14,862.61, 20,511.03 and 8,490.25 is: 11,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,862.61 : 20,511.03 = 8,490.25 : x
  2. Step 2: Convert to fraction form
    14,862.61/20,511.03 = 8,490.25/x
  3. Step 3: Cross multiply
    14,862.61x = 20,511.03 × 8,490.25
  4. Step 4: Simplify right side
    14,862.61x = 174,143,772.46
  5. Step 5: Solve for x
    x = 174,143,772.46/14,862.61
  6. Step 6: Final answer
    x = 11,716.90

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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.