Home / 12,995.35-19,495.15-6,421.59

Finding the Fourth Proportional to 12,995.35, 19,495.15 and 6,421.59

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Solution

The fourth proportional to 12,995.35, 19,495.15 and 6,421.59 is: 9,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.35 : 19,495.15 = 6,421.59 : x
  2. Step 2: Convert to fraction form
    12,995.35/19,495.15 = 6,421.59/x
  3. Step 3: Cross multiply
    12,995.35x = 19,495.15 × 6,421.59
  4. Step 4: Simplify right side
    12,995.35x = 125,189,844.23
  5. Step 5: Solve for x
    x = 125,189,844.23/12,995.35
  6. Step 6: Final answer
    x = 9,633.44

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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.