Home / 10,280.88-15,421.56-4,738.86

Finding the Fourth Proportional to 10,280.88, 15,421.56 and 4,738.86

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Solution

The fourth proportional to 10,280.88, 15,421.56 and 4,738.86 is: 7,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.88 : 15,421.56 = 4,738.86 : x
  2. Step 2: Convert to fraction form
    10,280.88/15,421.56 = 4,738.86/x
  3. Step 3: Cross multiply
    10,280.88x = 15,421.56 × 4,738.86
  4. Step 4: Simplify right side
    10,280.88x = 73,080,613.82
  5. Step 5: Solve for x
    x = 73,080,613.82/10,280.88
  6. Step 6: Final answer
    x = 7,108.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.