Home / 15,458.55-21,333.18-8,743.86

Finding the Fourth Proportional to 15,458.55, 21,333.18 and 8,743.86

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Solution

The fourth proportional to 15,458.55, 21,333.18 and 8,743.86 is: 12,066.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.55 : 21,333.18 = 8,743.86 : x
  2. Step 2: Convert to fraction form
    15,458.55/21,333.18 = 8,743.86/x
  3. Step 3: Cross multiply
    15,458.55x = 21,333.18 × 8,743.86
  4. Step 4: Simplify right side
    15,458.55x = 186,534,339.27
  5. Step 5: Solve for x
    x = 186,534,339.27/15,458.55
  6. Step 6: Final answer
    x = 12,066.74

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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.