Home / 14,064.90-21,079.05-12,575.46

Finding the Fourth Proportional to 14,064.90, 21,079.05 and 12,575.46

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Solution

The fourth proportional to 14,064.90, 21,079.05 and 12,575.46 is: 18,846.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,064.90 : 21,079.05 = 12,575.46 : x
  2. Step 2: Convert to fraction form
    14,064.90/21,079.05 = 12,575.46/x
  3. Step 3: Cross multiply
    14,064.90x = 21,079.05 × 12,575.46
  4. Step 4: Simplify right side
    14,064.90x = 265,078,750.11
  5. Step 5: Solve for x
    x = 265,078,750.11/14,064.90
  6. Step 6: Final answer
    x = 18,846.83

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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.