Home / 10,445.45-15,628.91-7,331.54

Finding the Fourth Proportional to 10,445.45, 15,628.91 and 7,331.54

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Solution

The fourth proportional to 10,445.45, 15,628.91 and 7,331.54 is: 10,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.45 : 15,628.91 = 7,331.54 : x
  2. Step 2: Convert to fraction form
    10,445.45/15,628.91 = 7,331.54/x
  3. Step 3: Cross multiply
    10,445.45x = 15,628.91 × 7,331.54
  4. Step 4: Simplify right side
    10,445.45x = 114,583,864.02
  5. Step 5: Solve for x
    x = 114,583,864.02/10,445.45
  6. Step 6: Final answer
    x = 10,969.74

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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.