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Finding the Fourth Proportional to 10,511.95, 15,750.08 and 6,343.20

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Solution

The fourth proportional to 10,511.95, 15,750.08 and 6,343.20 is: 9,504.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.95 : 15,750.08 = 6,343.20 : x
  2. Step 2: Convert to fraction form
    10,511.95/15,750.08 = 6,343.20/x
  3. Step 3: Cross multiply
    10,511.95x = 15,750.08 × 6,343.20
  4. Step 4: Simplify right side
    10,511.95x = 99,905,907.46
  5. Step 5: Solve for x
    x = 99,905,907.46/10,511.95
  6. Step 6: Final answer
    x = 9,504.03

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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.