Home / 18,688.63-25,790.19-10,305.13

Finding the Fourth Proportional to 18,688.63, 25,790.19 and 10,305.13

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Solution

The fourth proportional to 18,688.63, 25,790.19 and 10,305.13 is: 14,221.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.63 : 25,790.19 = 10,305.13 : x
  2. Step 2: Convert to fraction form
    18,688.63/25,790.19 = 10,305.13/x
  3. Step 3: Cross multiply
    18,688.63x = 25,790.19 × 10,305.13
  4. Step 4: Simplify right side
    18,688.63x = 265,771,260.67
  5. Step 5: Solve for x
    x = 265,771,260.67/18,688.63
  6. Step 6: Final answer
    x = 14,221.01

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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.