Home / 15,416.96-21,276.52-8,703.16

Finding the Fourth Proportional to 15,416.96, 21,276.52 and 8,703.16

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Solution

The fourth proportional to 15,416.96, 21,276.52 and 8,703.16 is: 12,010.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.96 : 21,276.52 = 8,703.16 : x
  2. Step 2: Convert to fraction form
    15,416.96/21,276.52 = 8,703.16/x
  3. Step 3: Cross multiply
    15,416.96x = 21,276.52 × 8,703.16
  4. Step 4: Simplify right side
    15,416.96x = 185,172,882.85
  5. Step 5: Solve for x
    x = 185,172,882.85/15,416.96
  6. Step 6: Final answer
    x = 12,010.99

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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.