Home / 9,434.70-13,020.20-5,186.18

Finding the Fourth Proportional to 9,434.70, 13,020.20 and 5,186.18

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Solution

The fourth proportional to 9,434.70, 13,020.20 and 5,186.18 is: 7,157.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,434.70 : 13,020.20 = 5,186.18 : x
  2. Step 2: Convert to fraction form
    9,434.70/13,020.20 = 5,186.18/x
  3. Step 3: Cross multiply
    9,434.70x = 13,020.20 × 5,186.18
  4. Step 4: Simplify right side
    9,434.70x = 67,525,100.84
  5. Step 5: Solve for x
    x = 67,525,100.84/9,434.70
  6. Step 6: Final answer
    x = 7,157.10

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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.