Home / 19,158.73-26,438.40-12,078.32

Finding the Fourth Proportional to 19,158.73, 26,438.40 and 12,078.32

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Solution

The fourth proportional to 19,158.73, 26,438.40 and 12,078.32 is: 16,667.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.73 : 26,438.40 = 12,078.32 : x
  2. Step 2: Convert to fraction form
    19,158.73/26,438.40 = 12,078.32/x
  3. Step 3: Cross multiply
    19,158.73x = 26,438.40 × 12,078.32
  4. Step 4: Simplify right side
    19,158.73x = 319,331,323.30
  5. Step 5: Solve for x
    x = 319,331,323.30/19,158.73
  6. Step 6: Final answer
    x = 16,667.67

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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.