Home / 10,307.91-15,460.07-4,760.78

Finding the Fourth Proportional to 10,307.91, 15,460.07 and 4,760.78

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Solution

The fourth proportional to 10,307.91, 15,460.07 and 4,760.78 is: 7,140.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,307.91 : 15,460.07 = 4,760.78 : x
  2. Step 2: Convert to fraction form
    10,307.91/15,460.07 = 4,760.78/x
  3. Step 3: Cross multiply
    10,307.91x = 15,460.07 × 4,760.78
  4. Step 4: Simplify right side
    10,307.91x = 73,601,992.05
  5. Step 5: Solve for x
    x = 73,601,992.05/10,307.91
  6. Step 6: Final answer
    x = 7,140.34

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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.