Home / 12,883.48-19,320.66-6,128.27

Finding the Fourth Proportional to 12,883.48, 19,320.66 and 6,128.27

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Solution

The fourth proportional to 12,883.48, 19,320.66 and 6,128.27 is: 9,190.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.48 : 19,320.66 = 6,128.27 : x
  2. Step 2: Convert to fraction form
    12,883.48/19,320.66 = 6,128.27/x
  3. Step 3: Cross multiply
    12,883.48x = 19,320.66 × 6,128.27
  4. Step 4: Simplify right side
    12,883.48x = 118,402,188.08
  5. Step 5: Solve for x
    x = 118,402,188.08/12,883.48
  6. Step 6: Final answer
    x = 9,190.24

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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.