Home / 15,956.95-22,019.73-8,785.47

Finding the Fourth Proportional to 15,956.95, 22,019.73 and 8,785.47

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Solution

The fourth proportional to 15,956.95, 22,019.73 and 8,785.47 is: 12,123.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,956.95 : 22,019.73 = 8,785.47 : x
  2. Step 2: Convert to fraction form
    15,956.95/22,019.73 = 8,785.47/x
  3. Step 3: Cross multiply
    15,956.95x = 22,019.73 × 8,785.47
  4. Step 4: Simplify right side
    15,956.95x = 193,453,677.32
  5. Step 5: Solve for x
    x = 193,453,677.32/15,956.95
  6. Step 6: Final answer
    x = 12,123.47

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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.