Home / 13,358.54-18,434.16-7,309.10

Finding the Fourth Proportional to 13,358.54, 18,434.16 and 7,309.10

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Solution

The fourth proportional to 13,358.54, 18,434.16 and 7,309.10 is: 10,086.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.54 : 18,434.16 = 7,309.10 : x
  2. Step 2: Convert to fraction form
    13,358.54/18,434.16 = 7,309.10/x
  3. Step 3: Cross multiply
    13,358.54x = 18,434.16 × 7,309.10
  4. Step 4: Simplify right side
    13,358.54x = 134,737,164.94
  5. Step 5: Solve for x
    x = 134,737,164.94/13,358.54
  6. Step 6: Final answer
    x = 10,086.22

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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.