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Finding the Fourth Proportional to 19,298.27, 28,927.76 and 8,775.76

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Solution

The fourth proportional to 19,298.27, 28,927.76 and 8,775.76 is: 13,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,298.27 : 28,927.76 = 8,775.76 : x
  2. Step 2: Convert to fraction form
    19,298.27/28,927.76 = 8,775.76/x
  3. Step 3: Cross multiply
    19,298.27x = 28,927.76 × 8,775.76
  4. Step 4: Simplify right side
    19,298.27x = 253,863,035.22
  5. Step 5: Solve for x
    x = 253,863,035.22/19,298.27
  6. Step 6: Final answer
    x = 13,154.70

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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.