Home / 8,965.09-12,373.91-5,190.47

Finding the Fourth Proportional to 8,965.09, 12,373.91 and 5,190.47

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Solution

The fourth proportional to 8,965.09, 12,373.91 and 5,190.47 is: 7,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.09 : 12,373.91 = 5,190.47 : x
  2. Step 2: Convert to fraction form
    8,965.09/12,373.91 = 5,190.47/x
  3. Step 3: Cross multiply
    8,965.09x = 12,373.91 × 5,190.47
  4. Step 4: Simplify right side
    8,965.09x = 64,226,386.68
  5. Step 5: Solve for x
    x = 64,226,386.68/8,965.09
  6. Step 6: Final answer
    x = 7,164.05

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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.