Home / 19,131.48-28,695.60-6,648.30

Finding the Fourth Proportional to 19,131.48, 28,695.60 and 6,648.30

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Solution

The fourth proportional to 19,131.48, 28,695.60 and 6,648.30 is: 9,971.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.48 : 28,695.60 = 6,648.30 : x
  2. Step 2: Convert to fraction form
    19,131.48/28,695.60 = 6,648.30/x
  3. Step 3: Cross multiply
    19,131.48x = 28,695.60 × 6,648.30
  4. Step 4: Simplify right side
    19,131.48x = 190,776,957.48
  5. Step 5: Solve for x
    x = 190,776,957.48/19,131.48
  6. Step 6: Final answer
    x = 9,971.89

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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.