Home / 19,860.30-29,790.51-6,712.77

Finding the Fourth Proportional to 19,860.30, 29,790.51 and 6,712.77

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Solution

The fourth proportional to 19,860.30, 29,790.51 and 6,712.77 is: 10,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.30 : 29,790.51 = 6,712.77 : x
  2. Step 2: Convert to fraction form
    19,860.30/29,790.51 = 6,712.77/x
  3. Step 3: Cross multiply
    19,860.30x = 29,790.51 × 6,712.77
  4. Step 4: Simplify right side
    19,860.30x = 199,976,841.81
  5. Step 5: Solve for x
    x = 199,976,841.81/19,860.30
  6. Step 6: Final answer
    x = 10,069.18

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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.