Home / 14,138.28-19,511.37-7,851.84

Finding the Fourth Proportional to 14,138.28, 19,511.37 and 7,851.84

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Solution

The fourth proportional to 14,138.28, 19,511.37 and 7,851.84 is: 10,835.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.28 : 19,511.37 = 7,851.84 : x
  2. Step 2: Convert to fraction form
    14,138.28/19,511.37 = 7,851.84/x
  3. Step 3: Cross multiply
    14,138.28x = 19,511.37 × 7,851.84
  4. Step 4: Simplify right side
    14,138.28x = 153,200,155.42
  5. Step 5: Solve for x
    x = 153,200,155.42/14,138.28
  6. Step 6: Final answer
    x = 10,835.84

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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.