Home / 18,155.04-25,016.64-12,491.52

Finding the Fourth Proportional to 18,155.04, 25,016.64 and 12,491.52

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Solution

The fourth proportional to 18,155.04, 25,016.64 and 12,491.52 is: 17,212.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.04 : 25,016.64 = 12,491.52 : x
  2. Step 2: Convert to fraction form
    18,155.04/25,016.64 = 12,491.52/x
  3. Step 3: Cross multiply
    18,155.04x = 25,016.64 × 12,491.52
  4. Step 4: Simplify right side
    18,155.04x = 312,495,858.89
  5. Step 5: Solve for x
    x = 312,495,858.89/18,155.04
  6. Step 6: Final answer
    x = 17,212.62

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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.