Home / 10,880.45-15,015.02-6,631.50

Finding the Fourth Proportional to 10,880.45, 15,015.02 and 6,631.50

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Solution

The fourth proportional to 10,880.45, 15,015.02 and 6,631.50 is: 9,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.45 : 15,015.02 = 6,631.50 : x
  2. Step 2: Convert to fraction form
    10,880.45/15,015.02 = 6,631.50/x
  3. Step 3: Cross multiply
    10,880.45x = 15,015.02 × 6,631.50
  4. Step 4: Simplify right side
    10,880.45x = 99,572,105.13
  5. Step 5: Solve for x
    x = 99,572,105.13/10,880.45
  6. Step 6: Final answer
    x = 9,151.47

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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.