Home / 14,181.40-21,285.21-7,166.35

Finding the Fourth Proportional to 14,181.40, 21,285.21 and 7,166.35

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Solution

The fourth proportional to 14,181.40, 21,285.21 and 7,166.35 is: 10,756.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.40 : 21,285.21 = 7,166.35 : x
  2. Step 2: Convert to fraction form
    14,181.40/21,285.21 = 7,166.35/x
  3. Step 3: Cross multiply
    14,181.40x = 21,285.21 × 7,166.35
  4. Step 4: Simplify right side
    14,181.40x = 152,537,264.68
  5. Step 5: Solve for x
    x = 152,537,264.68/14,181.40
  6. Step 6: Final answer
    x = 10,756.15

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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.