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Finding the Fourth Proportional to 18,846.78, 28,276.32 and 9,482.32

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Solution

The fourth proportional to 18,846.78, 28,276.32 and 9,482.32 is: 14,226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,846.78 : 28,276.32 = 9,482.32 : x
  2. Step 2: Convert to fraction form
    18,846.78/28,276.32 = 9,482.32/x
  3. Step 3: Cross multiply
    18,846.78x = 28,276.32 × 9,482.32
  4. Step 4: Simplify right side
    18,846.78x = 268,125,026.51
  5. Step 5: Solve for x
    x = 268,125,026.51/18,846.78
  6. Step 6: Final answer
    x = 14,226.57

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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.