Home / 14,122.12-19,487.10-8,155.69

Finding the Fourth Proportional to 14,122.12, 19,487.10 and 8,155.69

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Solution

The fourth proportional to 14,122.12, 19,487.10 and 8,155.69 is: 11,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.12 : 19,487.10 = 8,155.69 : x
  2. Step 2: Convert to fraction form
    14,122.12/19,487.10 = 8,155.69/x
  3. Step 3: Cross multiply
    14,122.12x = 19,487.10 × 8,155.69
  4. Step 4: Simplify right side
    14,122.12x = 158,930,746.60
  5. Step 5: Solve for x
    x = 158,930,746.60/14,122.12
  6. Step 6: Final answer
    x = 11,254.03

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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.