Home / 10,289.78-15,425.64-4,950.26

Finding the Fourth Proportional to 10,289.78, 15,425.64 and 4,950.26

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Solution

The fourth proportional to 10,289.78, 15,425.64 and 4,950.26 is: 7,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.78 : 15,425.64 = 4,950.26 : x
  2. Step 2: Convert to fraction form
    10,289.78/15,425.64 = 4,950.26/x
  3. Step 3: Cross multiply
    10,289.78x = 15,425.64 × 4,950.26
  4. Step 4: Simplify right side
    10,289.78x = 76,360,928.67
  5. Step 5: Solve for x
    x = 76,360,928.67/10,289.78
  6. Step 6: Final answer
    x = 7,421.05

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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.