Home / 14,862.72-20,510.10-8,148.23

Finding the Fourth Proportional to 14,862.72, 20,510.10 and 8,148.23

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Solution

The fourth proportional to 14,862.72, 20,510.10 and 8,148.23 is: 11,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,862.72 : 20,510.10 = 8,148.23 : x
  2. Step 2: Convert to fraction form
    14,862.72/20,510.10 = 8,148.23/x
  3. Step 3: Cross multiply
    14,862.72x = 20,510.10 × 8,148.23
  4. Step 4: Simplify right side
    14,862.72x = 167,120,909.57
  5. Step 5: Solve for x
    x = 167,120,909.57/14,862.72
  6. Step 6: Final answer
    x = 11,244.30

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Half scale
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Double scale
Find fourth proportional to 14,863.72, 20,511.48 and 8,149.23
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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.