Home / 8,695.14-13,010.18-5,172.30

Finding the Fourth Proportional to 8,695.14, 13,010.18 and 5,172.30

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Solution

The fourth proportional to 8,695.14, 13,010.18 and 5,172.30 is: 7,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.14 : 13,010.18 = 5,172.30 : x
  2. Step 2: Convert to fraction form
    8,695.14/13,010.18 = 5,172.30/x
  3. Step 3: Cross multiply
    8,695.14x = 13,010.18 × 5,172.30
  4. Step 4: Simplify right side
    8,695.14x = 67,292,554.01
  5. Step 5: Solve for x
    x = 67,292,554.01/8,695.14
  6. Step 6: Final answer
    x = 7,739.10

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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.