Home / 14,181.12-21,271.48-6,384.40

Finding the Fourth Proportional to 14,181.12, 21,271.48 and 6,384.40

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Solution

The fourth proportional to 14,181.12, 21,271.48 and 6,384.40 is: 9,576.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.12 : 21,271.48 = 6,384.40 : x
  2. Step 2: Convert to fraction form
    14,181.12/21,271.48 = 6,384.40/x
  3. Step 3: Cross multiply
    14,181.12x = 21,271.48 × 6,384.40
  4. Step 4: Simplify right side
    14,181.12x = 135,805,636.91
  5. Step 5: Solve for x
    x = 135,805,636.91/14,181.12
  6. Step 6: Final answer
    x = 9,576.51

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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.