Home / 8,725.16-12,036.74-5,186.36

Finding the Fourth Proportional to 8,725.16, 12,036.74 and 5,186.36

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Solution

The fourth proportional to 8,725.16, 12,036.74 and 5,186.36 is: 7,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.16 : 12,036.74 = 5,186.36 : x
  2. Step 2: Convert to fraction form
    8,725.16/12,036.74 = 5,186.36/x
  3. Step 3: Cross multiply
    8,725.16x = 12,036.74 × 5,186.36
  4. Step 4: Simplify right side
    8,725.16x = 62,426,866.87
  5. Step 5: Solve for x
    x = 62,426,866.87/8,725.16
  6. Step 6: Final answer
    x = 7,154.81

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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.