Home / 15,313.93-21,133.20-8,944.90

Finding the Fourth Proportional to 15,313.93, 21,133.20 and 8,944.90

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Solution

The fourth proportional to 15,313.93, 21,133.20 and 8,944.90 is: 12,343.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.93 : 21,133.20 = 8,944.90 : x
  2. Step 2: Convert to fraction form
    15,313.93/21,133.20 = 8,944.90/x
  3. Step 3: Cross multiply
    15,313.93x = 21,133.20 × 8,944.90
  4. Step 4: Simplify right side
    15,313.93x = 189,034,341.39
  5. Step 5: Solve for x
    x = 189,034,341.39/15,313.93
  6. Step 6: Final answer
    x = 12,343.95

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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.