Home / 14,001.16-21,005.85-4,140.70

Finding the Fourth Proportional to 14,001.16, 21,005.85 and 4,140.70

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Solution

The fourth proportional to 14,001.16, 21,005.85 and 4,140.70 is: 6,212.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.16 : 21,005.85 = 4,140.70 : x
  2. Step 2: Convert to fraction form
    14,001.16/21,005.85 = 4,140.70/x
  3. Step 3: Cross multiply
    14,001.16x = 21,005.85 × 4,140.70
  4. Step 4: Simplify right side
    14,001.16x = 86,978,923.10
  5. Step 5: Solve for x
    x = 86,978,923.10/14,001.16
  6. Step 6: Final answer
    x = 6,212.27

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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.