Home / 13,518.95-20,271.11-4,156.16

Finding the Fourth Proportional to 13,518.95, 20,271.11 and 4,156.16

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Solution

The fourth proportional to 13,518.95, 20,271.11 and 4,156.16 is: 6,231.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.95 : 20,271.11 = 4,156.16 : x
  2. Step 2: Convert to fraction form
    13,518.95/20,271.11 = 4,156.16/x
  3. Step 3: Cross multiply
    13,518.95x = 20,271.11 × 4,156.16
  4. Step 4: Simplify right side
    13,518.95x = 84,249,854.40
  5. Step 5: Solve for x
    x = 84,249,854.40/13,518.95
  6. Step 6: Final answer
    x = 6,231.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.