Home / 8,707.37-12,011.91-5,168.08

Finding the Fourth Proportional to 8,707.37, 12,011.91 and 5,168.08

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Solution

The fourth proportional to 8,707.37, 12,011.91 and 5,168.08 is: 7,129.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.37 : 12,011.91 = 5,168.08 : x
  2. Step 2: Convert to fraction form
    8,707.37/12,011.91 = 5,168.08/x
  3. Step 3: Cross multiply
    8,707.37x = 12,011.91 × 5,168.08
  4. Step 4: Simplify right side
    8,707.37x = 62,078,451.77
  5. Step 5: Solve for x
    x = 62,078,451.77/8,707.37
  6. Step 6: Final answer
    x = 7,129.41

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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.