Home / 7,142.36-10,705.19-4,370.34

Finding the Fourth Proportional to 7,142.36, 10,705.19 and 4,370.34

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Solution

The fourth proportional to 7,142.36, 10,705.19 and 4,370.34 is: 6,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.36 : 10,705.19 = 4,370.34 : x
  2. Step 2: Convert to fraction form
    7,142.36/10,705.19 = 4,370.34/x
  3. Step 3: Cross multiply
    7,142.36x = 10,705.19 × 4,370.34
  4. Step 4: Simplify right side
    7,142.36x = 46,785,298.21
  5. Step 5: Solve for x
    x = 46,785,298.21/7,142.36
  6. Step 6: Final answer
    x = 6,550.40

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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.