Home / 14,140.90-21,214.40-4,146.46

Finding the Fourth Proportional to 14,140.90, 21,214.40 and 4,146.46

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Solution

The fourth proportional to 14,140.90, 21,214.40 and 4,146.46 is: 6,220.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.90 : 21,214.40 = 4,146.46 : x
  2. Step 2: Convert to fraction form
    14,140.90/21,214.40 = 4,146.46/x
  3. Step 3: Cross multiply
    14,140.90x = 21,214.40 × 4,146.46
  4. Step 4: Simplify right side
    14,140.90x = 87,964,661.02
  5. Step 5: Solve for x
    x = 87,964,661.02/14,140.90
  6. Step 6: Final answer
    x = 6,220.58

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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.