Home / 13,560.48-18,712.22-7,894.94

Finding the Fourth Proportional to 13,560.48, 18,712.22 and 7,894.94

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Solution

The fourth proportional to 13,560.48, 18,712.22 and 7,894.94 is: 10,894.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.48 : 18,712.22 = 7,894.94 : x
  2. Step 2: Convert to fraction form
    13,560.48/18,712.22 = 7,894.94/x
  3. Step 3: Cross multiply
    13,560.48x = 18,712.22 × 7,894.94
  4. Step 4: Simplify right side
    13,560.48x = 147,731,721.13
  5. Step 5: Solve for x
    x = 147,731,721.13/13,560.48
  6. Step 6: Final answer
    x = 10,894.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.