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Finding the Fourth Proportional to 8,995.49, 13,485.07 and 3,148.91

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Solution

The fourth proportional to 8,995.49, 13,485.07 and 3,148.91 is: 4,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.49 : 13,485.07 = 3,148.91 : x
  2. Step 2: Convert to fraction form
    8,995.49/13,485.07 = 3,148.91/x
  3. Step 3: Cross multiply
    8,995.49x = 13,485.07 × 3,148.91
  4. Step 4: Simplify right side
    8,995.49x = 42,463,256.03
  5. Step 5: Solve for x
    x = 42,463,256.03/8,995.49
  6. Step 6: Final answer
    x = 4,720.51

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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.