Home / 18,688.92-25,777.17-12,709.95

Finding the Fourth Proportional to 18,688.92, 25,777.17 and 12,709.95

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Solution

The fourth proportional to 18,688.92, 25,777.17 and 12,709.95 is: 17,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.92 : 25,777.17 = 12,709.95 : x
  2. Step 2: Convert to fraction form
    18,688.92/25,777.17 = 12,709.95/x
  3. Step 3: Cross multiply
    18,688.92x = 25,777.17 × 12,709.95
  4. Step 4: Simplify right side
    18,688.92x = 327,626,541.84
  5. Step 5: Solve for x
    x = 327,626,541.84/18,688.92
  6. Step 6: Final answer
    x = 17,530.52

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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.