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Finding the Fourth Proportional to 12,574.34, 18,867.66 and 8,900.18

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Solution

The fourth proportional to 12,574.34, 18,867.66 and 8,900.18 is: 13,354.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.34 : 18,867.66 = 8,900.18 : x
  2. Step 2: Convert to fraction form
    12,574.34/18,867.66 = 8,900.18/x
  3. Step 3: Cross multiply
    12,574.34x = 18,867.66 × 8,900.18
  4. Step 4: Simplify right side
    12,574.34x = 167,925,570.18
  5. Step 5: Solve for x
    x = 167,925,570.18/12,574.34
  6. Step 6: Final answer
    x = 13,354.62

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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.