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Finding the Fourth Proportional to 9,012.45, 13,500.77 and 7,055.49

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Solution

The fourth proportional to 9,012.45, 13,500.77 and 7,055.49 is: 10,569.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.45 : 13,500.77 = 7,055.49 : x
  2. Step 2: Convert to fraction form
    9,012.45/13,500.77 = 7,055.49/x
  3. Step 3: Cross multiply
    9,012.45x = 13,500.77 × 7,055.49
  4. Step 4: Simplify right side
    9,012.45x = 95,254,512.45
  5. Step 5: Solve for x
    x = 95,254,512.45/9,012.45
  6. Step 6: Final answer
    x = 10,569.21

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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.