Home / 11,869.35-16,390.58-9,528.63

Finding the Fourth Proportional to 11,869.35, 16,390.58 and 9,528.63

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Solution

The fourth proportional to 11,869.35, 16,390.58 and 9,528.63 is: 13,158.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.35 : 16,390.58 = 9,528.63 : x
  2. Step 2: Convert to fraction form
    11,869.35/16,390.58 = 9,528.63/x
  3. Step 3: Cross multiply
    11,869.35x = 16,390.58 × 9,528.63
  4. Step 4: Simplify right side
    11,869.35x = 156,179,772.31
  5. Step 5: Solve for x
    x = 156,179,772.31/11,869.35
  6. Step 6: Final answer
    x = 13,158.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.