Home / 14,194.80-21,263.40-8,031.60

Finding the Fourth Proportional to 14,194.80, 21,263.40 and 8,031.60

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Solution

The fourth proportional to 14,194.80, 21,263.40 and 8,031.60 is: 12,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,194.80 : 21,263.40 = 8,031.60 : x
  2. Step 2: Convert to fraction form
    14,194.80/21,263.40 = 8,031.60/x
  3. Step 3: Cross multiply
    14,194.80x = 21,263.40 × 8,031.60
  4. Step 4: Simplify right side
    14,194.80x = 170,779,123.44
  5. Step 5: Solve for x
    x = 170,779,123.44/14,194.80
  6. Step 6: Final answer
    x = 12,031.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.