Home / 15,955.39-22,018.91-8,786.05

Finding the Fourth Proportional to 15,955.39, 22,018.91 and 8,786.05

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Solution

The fourth proportional to 15,955.39, 22,018.91 and 8,786.05 is: 12,125.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.39 : 22,018.91 = 8,786.05 : x
  2. Step 2: Convert to fraction form
    15,955.39/22,018.91 = 8,786.05/x
  3. Step 3: Cross multiply
    15,955.39x = 22,018.91 × 8,786.05
  4. Step 4: Simplify right side
    15,955.39x = 193,459,145.23
  5. Step 5: Solve for x
    x = 193,459,145.23/15,955.39
  6. Step 6: Final answer
    x = 12,125.00

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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.