Home / 15,293.60-21,108.12-9,009.44

Finding the Fourth Proportional to 15,293.60, 21,108.12 and 9,009.44

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Solution

The fourth proportional to 15,293.60, 21,108.12 and 9,009.44 is: 12,434.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.60 : 21,108.12 = 9,009.44 : x
  2. Step 2: Convert to fraction form
    15,293.60/21,108.12 = 9,009.44/x
  3. Step 3: Cross multiply
    15,293.60x = 21,108.12 × 9,009.44
  4. Step 4: Simplify right side
    15,293.60x = 190,172,340.65
  5. Step 5: Solve for x
    x = 190,172,340.65/15,293.60
  6. Step 6: Final answer
    x = 12,434.77

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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.