Home / 14,390.85-19,860.39-8,017.86

Finding the Fourth Proportional to 14,390.85, 19,860.39 and 8,017.86

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Solution

The fourth proportional to 14,390.85, 19,860.39 and 8,017.86 is: 11,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.85 : 19,860.39 = 8,017.86 : x
  2. Step 2: Convert to fraction form
    14,390.85/19,860.39 = 8,017.86/x
  3. Step 3: Cross multiply
    14,390.85x = 19,860.39 × 8,017.86
  4. Step 4: Simplify right side
    14,390.85x = 159,237,826.57
  5. Step 5: Solve for x
    x = 159,237,826.57/14,390.85
  6. Step 6: Final answer
    x = 11,065.21

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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.