Home / 12,572.37-18,867.69-10,136.61

Finding the Fourth Proportional to 12,572.37, 18,867.69 and 10,136.61

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Solution

The fourth proportional to 12,572.37, 18,867.69 and 10,136.61 is: 15,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.37 : 18,867.69 = 10,136.61 : x
  2. Step 2: Convert to fraction form
    12,572.37/18,867.69 = 10,136.61/x
  3. Step 3: Cross multiply
    12,572.37x = 18,867.69 × 10,136.61
  4. Step 4: Simplify right side
    12,572.37x = 191,254,415.13
  5. Step 5: Solve for x
    x = 191,254,415.13/12,572.37
  6. Step 6: Final answer
    x = 15,212.28

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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.