Home / 14,631.68-21,948.26-8,390.02

Finding the Fourth Proportional to 14,631.68, 21,948.26 and 8,390.02

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Solution

The fourth proportional to 14,631.68, 21,948.26 and 8,390.02 is: 12,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.68 : 21,948.26 = 8,390.02 : x
  2. Step 2: Convert to fraction form
    14,631.68/21,948.26 = 8,390.02/x
  3. Step 3: Cross multiply
    14,631.68x = 21,948.26 × 8,390.02
  4. Step 4: Simplify right side
    14,631.68x = 184,146,340.37
  5. Step 5: Solve for x
    x = 184,146,340.37/14,631.68
  6. Step 6: Final answer
    x = 12,585.45

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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.