Home / 13,511.07-20,263.23-6,931.98

Finding the Fourth Proportional to 13,511.07, 20,263.23 and 6,931.98

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Solution

The fourth proportional to 13,511.07, 20,263.23 and 6,931.98 is: 10,396.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.07 : 20,263.23 = 6,931.98 : x
  2. Step 2: Convert to fraction form
    13,511.07/20,263.23 = 6,931.98/x
  3. Step 3: Cross multiply
    13,511.07x = 20,263.23 × 6,931.98
  4. Step 4: Simplify right side
    13,511.07x = 140,464,305.10
  5. Step 5: Solve for x
    x = 140,464,305.10/13,511.07
  6. Step 6: Final answer
    x = 10,396.24

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1.5x scale

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.