Home / 15,955.45-22,018.03-8,785.53

Finding the Fourth Proportional to 15,955.45, 22,018.03 and 8,785.53

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Solution

The fourth proportional to 15,955.45, 22,018.03 and 8,785.53 is: 12,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.45 : 22,018.03 = 8,785.53 : x
  2. Step 2: Convert to fraction form
    15,955.45/22,018.03 = 8,785.53/x
  3. Step 3: Cross multiply
    15,955.45x = 22,018.03 × 8,785.53
  4. Step 4: Simplify right side
    15,955.45x = 193,440,041.14
  5. Step 5: Solve for x
    x = 193,440,041.14/15,955.45
  6. Step 6: Final answer
    x = 12,123.76

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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.