Home / 19,390.15-26,760.95-11,433.12

Finding the Fourth Proportional to 19,390.15, 26,760.95 and 11,433.12

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Solution

The fourth proportional to 19,390.15, 26,760.95 and 11,433.12 is: 15,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.15 : 26,760.95 = 11,433.12 : x
  2. Step 2: Convert to fraction form
    19,390.15/26,760.95 = 11,433.12/x
  3. Step 3: Cross multiply
    19,390.15x = 26,760.95 × 11,433.12
  4. Step 4: Simplify right side
    19,390.15x = 305,961,152.66
  5. Step 5: Solve for x
    x = 305,961,152.66/19,390.15
  6. Step 6: Final answer
    x = 15,779.21

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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.