Home / 15,216.86-21,001.68-9,250.40

Finding the Fourth Proportional to 15,216.86, 21,001.68 and 9,250.40

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Solution

The fourth proportional to 15,216.86, 21,001.68 and 9,250.40 is: 12,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.86 : 21,001.68 = 9,250.40 : x
  2. Step 2: Convert to fraction form
    15,216.86/21,001.68 = 9,250.40/x
  3. Step 3: Cross multiply
    15,216.86x = 21,001.68 × 9,250.40
  4. Step 4: Simplify right side
    15,216.86x = 194,273,993.18
  5. Step 5: Solve for x
    x = 194,273,993.18/15,216.86
  6. Step 6: Final answer
    x = 12,767.02

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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.