Home / 10,279.69-15,419.21-4,355.00

Finding the Fourth Proportional to 10,279.69, 15,419.21 and 4,355.00

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Solution

The fourth proportional to 10,279.69, 15,419.21 and 4,355.00 is: 6,532.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.69 : 15,419.21 = 4,355.00 : x
  2. Step 2: Convert to fraction form
    10,279.69/15,419.21 = 4,355.00/x
  3. Step 3: Cross multiply
    10,279.69x = 15,419.21 × 4,355.00
  4. Step 4: Simplify right side
    10,279.69x = 67,150,643.00
  5. Step 5: Solve for x
    x = 67,150,643.00/10,279.69
  6. Step 6: Final answer
    x = 6,532.36

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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.