Home / 19,440.36-29,160.78-7,746.76

Finding the Fourth Proportional to 19,440.36, 29,160.78 and 7,746.76

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Solution

The fourth proportional to 19,440.36, 29,160.78 and 7,746.76 is: 11,620.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440.36 : 29,160.78 = 7,746.76 : x
  2. Step 2: Convert to fraction form
    19,440.36/29,160.78 = 7,746.76/x
  3. Step 3: Cross multiply
    19,440.36x = 29,160.78 × 7,746.76
  4. Step 4: Simplify right side
    19,440.36x = 225,901,564.07
  5. Step 5: Solve for x
    x = 225,901,564.07/19,440.36
  6. Step 6: Final answer
    x = 11,620.24

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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.