Home / 18,341.56-25,326.86-11,639.08

Finding the Fourth Proportional to 18,341.56, 25,326.86 and 11,639.08

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Solution

The fourth proportional to 18,341.56, 25,326.86 and 11,639.08 is: 16,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.56 : 25,326.86 = 11,639.08 : x
  2. Step 2: Convert to fraction form
    18,341.56/25,326.86 = 11,639.08/x
  3. Step 3: Cross multiply
    18,341.56x = 25,326.86 × 11,639.08
  4. Step 4: Simplify right side
    18,341.56x = 294,781,349.69
  5. Step 5: Solve for x
    x = 294,781,349.69/18,341.56
  6. Step 6: Final answer
    x = 16,071.77

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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.