Home / 15,455.93-21,330.26-8,741.61

Finding the Fourth Proportional to 15,455.93, 21,330.26 and 8,741.61

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Solution

The fourth proportional to 15,455.93, 21,330.26 and 8,741.61 is: 12,064.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.93 : 21,330.26 = 8,741.61 : x
  2. Step 2: Convert to fraction form
    15,455.93/21,330.26 = 8,741.61/x
  3. Step 3: Cross multiply
    15,455.93x = 21,330.26 × 8,741.61
  4. Step 4: Simplify right side
    15,455.93x = 186,460,770.41
  5. Step 5: Solve for x
    x = 186,460,770.41/15,455.93
  6. Step 6: Final answer
    x = 12,064.03

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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.