Home / 14,001.14-21,001.64-4,140.47

Finding the Fourth Proportional to 14,001.14, 21,001.64 and 4,140.47

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Solution

The fourth proportional to 14,001.14, 21,001.64 and 4,140.47 is: 6,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.14 : 21,001.64 = 4,140.47 : x
  2. Step 2: Convert to fraction form
    14,001.14/21,001.64 = 4,140.47/x
  3. Step 3: Cross multiply
    14,001.14x = 21,001.64 × 4,140.47
  4. Step 4: Simplify right side
    14,001.14x = 86,956,534.66
  5. Step 5: Solve for x
    x = 86,956,534.66/14,001.14
  6. Step 6: Final answer
    x = 6,210.68

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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.