Home / 9,420.59-13,000.41-5,228.84

Finding the Fourth Proportional to 9,420.59, 13,000.41 and 5,228.84

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Solution

The fourth proportional to 9,420.59, 13,000.41 and 5,228.84 is: 7,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.59 : 13,000.41 = 5,228.84 : x
  2. Step 2: Convert to fraction form
    9,420.59/13,000.41 = 5,228.84/x
  3. Step 3: Cross multiply
    9,420.59x = 13,000.41 × 5,228.84
  4. Step 4: Simplify right side
    9,420.59x = 67,976,998.82
  5. Step 5: Solve for x
    x = 67,976,998.82/9,420.59
  6. Step 6: Final answer
    x = 7,215.79

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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.