Home / 18,688.56-25,790.16-10,305.04

Finding the Fourth Proportional to 18,688.56, 25,790.16 and 10,305.04

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Solution

The fourth proportional to 18,688.56, 25,790.16 and 10,305.04 is: 14,220.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.56 : 25,790.16 = 10,305.04 : x
  2. Step 2: Convert to fraction form
    18,688.56/25,790.16 = 10,305.04/x
  3. Step 3: Cross multiply
    18,688.56x = 25,790.16 × 10,305.04
  4. Step 4: Simplify right side
    18,688.56x = 265,768,630.41
  5. Step 5: Solve for x
    x = 265,768,630.41/18,688.56
  6. Step 6: Final answer
    x = 14,220.93

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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.