Home / 18,555.95-25,595.60-12,182.87

Finding the Fourth Proportional to 18,555.95, 25,595.60 and 12,182.87

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Solution

The fourth proportional to 18,555.95, 25,595.60 and 12,182.87 is: 16,804.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.95 : 25,595.60 = 12,182.87 : x
  2. Step 2: Convert to fraction form
    18,555.95/25,595.60 = 12,182.87/x
  3. Step 3: Cross multiply
    18,555.95x = 25,595.60 × 12,182.87
  4. Step 4: Simplify right side
    18,555.95x = 311,827,870.45
  5. Step 5: Solve for x
    x = 311,827,870.45/18,555.95
  6. Step 6: Final answer
    x = 16,804.74

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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.