Home / 15,300.06-21,115.18-8,586.34

Finding the Fourth Proportional to 15,300.06, 21,115.18 and 8,586.34

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Solution

The fourth proportional to 15,300.06, 21,115.18 and 8,586.34 is: 11,849.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.06 : 21,115.18 = 8,586.34 : x
  2. Step 2: Convert to fraction form
    15,300.06/21,115.18 = 8,586.34/x
  3. Step 3: Cross multiply
    15,300.06x = 21,115.18 × 8,586.34
  4. Step 4: Simplify right side
    15,300.06x = 181,302,114.64
  5. Step 5: Solve for x
    x = 181,302,114.64/15,300.06
  6. Step 6: Final answer
    x = 11,849.76

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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.