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Finding the Fourth Proportional to 7,898.71, 11,904.41 and 7,898.71

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Solution

The fourth proportional to 7,898.71, 11,904.41 and 7,898.71 is: 11,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.71 : 11,904.41 = 7,898.71 : x
  2. Step 2: Convert to fraction form
    7,898.71/11,904.41 = 7,898.71/x
  3. Step 3: Cross multiply
    7,898.71x = 11,904.41 × 7,898.71
  4. Step 4: Simplify right side
    7,898.71x = 94,029,482.31
  5. Step 5: Solve for x
    x = 94,029,482.31/7,898.71
  6. Step 6: Final answer
    x = 11,904.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.