Home / 12,798.18-19,199.30-5,404.77

Finding the Fourth Proportional to 12,798.18, 19,199.30 and 5,404.77

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Solution

The fourth proportional to 12,798.18, 19,199.30 and 5,404.77 is: 8,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.18 : 19,199.30 = 5,404.77 : x
  2. Step 2: Convert to fraction form
    12,798.18/19,199.30 = 5,404.77/x
  3. Step 3: Cross multiply
    12,798.18x = 19,199.30 × 5,404.77
  4. Step 4: Simplify right side
    12,798.18x = 103,767,773.64
  5. Step 5: Solve for x
    x = 103,767,773.64/12,798.18
  6. Step 6: Final answer
    x = 8,108.01

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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.