Home / 19,151.68-28,727.58-12,561.52

Finding the Fourth Proportional to 19,151.68, 28,727.58 and 12,561.52

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Solution

The fourth proportional to 19,151.68, 28,727.58 and 12,561.52 is: 18,842.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.68 : 28,727.58 = 12,561.52 : x
  2. Step 2: Convert to fraction form
    19,151.68/28,727.58 = 12,561.52/x
  3. Step 3: Cross multiply
    19,151.68x = 28,727.58 × 12,561.52
  4. Step 4: Simplify right side
    19,151.68x = 360,862,070.72
  5. Step 5: Solve for x
    x = 360,862,070.72/19,151.68
  6. Step 6: Final answer
    x = 18,842.32

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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.