Home / 18,736.76-25,856.88-10,779.32

Finding the Fourth Proportional to 18,736.76, 25,856.88 and 10,779.32

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Solution

The fourth proportional to 18,736.76, 25,856.88 and 10,779.32 is: 14,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.76 : 25,856.88 = 10,779.32 : x
  2. Step 2: Convert to fraction form
    18,736.76/25,856.88 = 10,779.32/x
  3. Step 3: Cross multiply
    18,736.76x = 25,856.88 × 10,779.32
  4. Step 4: Simplify right side
    18,736.76x = 278,719,583.72
  5. Step 5: Solve for x
    x = 278,719,583.72/18,736.76
  6. Step 6: Final answer
    x = 14,875.55

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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.