Home / 15,300.15-21,115.22-8,586.24

Finding the Fourth Proportional to 15,300.15, 21,115.22 and 8,586.24

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Solution

The fourth proportional to 15,300.15, 21,115.22 and 8,586.24 is: 11,849.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.15 : 21,115.22 = 8,586.24 : x
  2. Step 2: Convert to fraction form
    15,300.15/21,115.22 = 8,586.24/x
  3. Step 3: Cross multiply
    15,300.15x = 21,115.22 × 8,586.24
  4. Step 4: Simplify right side
    15,300.15x = 181,300,303.64
  5. Step 5: Solve for x
    x = 181,300,303.64/15,300.15
  6. Step 6: Final answer
    x = 11,849.58

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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.