Home / 13,272.66-19,887.10-7,710.39

Finding the Fourth Proportional to 13,272.66, 19,887.10 and 7,710.39

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Solution

The fourth proportional to 13,272.66, 19,887.10 and 7,710.39 is: 11,552.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.66 : 19,887.10 = 7,710.39 : x
  2. Step 2: Convert to fraction form
    13,272.66/19,887.10 = 7,710.39/x
  3. Step 3: Cross multiply
    13,272.66x = 19,887.10 × 7,710.39
  4. Step 4: Simplify right side
    13,272.66x = 153,337,197.53
  5. Step 5: Solve for x
    x = 153,337,197.53/13,272.66
  6. Step 6: Final answer
    x = 11,552.87

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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.