Home / 15,213.12-21,000.58-9,246.71

Finding the Fourth Proportional to 15,213.12, 21,000.58 and 9,246.71

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Solution

The fourth proportional to 15,213.12, 21,000.58 and 9,246.71 is: 12,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.12 : 21,000.58 = 9,246.71 : x
  2. Step 2: Convert to fraction form
    15,213.12/21,000.58 = 9,246.71/x
  3. Step 3: Cross multiply
    15,213.12x = 21,000.58 × 9,246.71
  4. Step 4: Simplify right side
    15,213.12x = 194,186,273.09
  5. Step 5: Solve for x
    x = 194,186,273.09/15,213.12
  6. Step 6: Final answer
    x = 12,764.40

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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.