Home / 12,713.78-19,070.40-4,393.54

Finding the Fourth Proportional to 12,713.78, 19,070.40 and 4,393.54

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Solution

The fourth proportional to 12,713.78, 19,070.40 and 4,393.54 is: 6,590.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.78 : 19,070.40 = 4,393.54 : x
  2. Step 2: Convert to fraction form
    12,713.78/19,070.40 = 4,393.54/x
  3. Step 3: Cross multiply
    12,713.78x = 19,070.40 × 4,393.54
  4. Step 4: Simplify right side
    12,713.78x = 83,786,565.22
  5. Step 5: Solve for x
    x = 83,786,565.22/12,713.78
  6. Step 6: Final answer
    x = 6,590.22

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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.