Home / 10,511.45-15,749.33-6,342.70

Finding the Fourth Proportional to 10,511.45, 15,749.33 and 6,342.70

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Solution

The fourth proportional to 10,511.45, 15,749.33 and 6,342.70 is: 9,503.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.45 : 15,749.33 = 6,342.70 : x
  2. Step 2: Convert to fraction form
    10,511.45/15,749.33 = 6,342.70/x
  3. Step 3: Cross multiply
    10,511.45x = 15,749.33 × 6,342.70
  4. Step 4: Simplify right side
    10,511.45x = 99,893,271.56
  5. Step 5: Solve for x
    x = 99,893,271.56/10,511.45
  6. Step 6: Final answer
    x = 9,503.28

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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.