Home / 19,786.16-29,679.23-6,638.50

Finding the Fourth Proportional to 19,786.16, 29,679.23 and 6,638.50

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Solution

The fourth proportional to 19,786.16, 29,679.23 and 6,638.50 is: 9,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.16 : 29,679.23 = 6,638.50 : x
  2. Step 2: Convert to fraction form
    19,786.16/29,679.23 = 6,638.50/x
  3. Step 3: Cross multiply
    19,786.16x = 29,679.23 × 6,638.50
  4. Step 4: Simplify right side
    19,786.16x = 197,025,386.77
  5. Step 5: Solve for x
    x = 197,025,386.77/19,786.16
  6. Step 6: Final answer
    x = 9,957.74

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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.