Home / 15,288.15-21,097.13-8,574.87

Finding the Fourth Proportional to 15,288.15, 21,097.13 and 8,574.87

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Solution

The fourth proportional to 15,288.15, 21,097.13 and 8,574.87 is: 11,833.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.15 : 21,097.13 = 8,574.87 : x
  2. Step 2: Convert to fraction form
    15,288.15/21,097.13 = 8,574.87/x
  3. Step 3: Cross multiply
    15,288.15x = 21,097.13 × 8,574.87
  4. Step 4: Simplify right side
    15,288.15x = 180,905,104.25
  5. Step 5: Solve for x
    x = 180,905,104.25/15,288.15
  6. Step 6: Final answer
    x = 11,833.03

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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.