Home / 19,210.27-28,818.48-8,117.07

Finding the Fourth Proportional to 19,210.27, 28,818.48 and 8,117.07

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Solution

The fourth proportional to 19,210.27, 28,818.48 and 8,117.07 is: 12,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.27 : 28,818.48 = 8,117.07 : x
  2. Step 2: Convert to fraction form
    19,210.27/28,818.48 = 8,117.07/x
  3. Step 3: Cross multiply
    19,210.27x = 28,818.48 × 8,117.07
  4. Step 4: Simplify right side
    19,210.27x = 233,921,619.45
  5. Step 5: Solve for x
    x = 233,921,619.45/19,210.27
  6. Step 6: Final answer
    x = 12,176.90

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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.