Home / 19,686.45-29,534.13-7,206.42

Finding the Fourth Proportional to 19,686.45, 29,534.13 and 7,206.42

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Solution

The fourth proportional to 19,686.45, 29,534.13 and 7,206.42 is: 10,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686.45 : 29,534.13 = 7,206.42 : x
  2. Step 2: Convert to fraction form
    19,686.45/29,534.13 = 7,206.42/x
  3. Step 3: Cross multiply
    19,686.45x = 29,534.13 × 7,206.42
  4. Step 4: Simplify right side
    19,686.45x = 212,835,345.11
  5. Step 5: Solve for x
    x = 212,835,345.11/19,686.45
  6. Step 6: Final answer
    x = 10,811.26

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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.