Home / 14,003.15-21,001.95-4,140.18

Finding the Fourth Proportional to 14,003.15, 21,001.95 and 4,140.18

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Solution

The fourth proportional to 14,003.15, 21,001.95 and 4,140.18 is: 6,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.15 : 21,001.95 = 4,140.18 : x
  2. Step 2: Convert to fraction form
    14,003.15/21,001.95 = 4,140.18/x
  3. Step 3: Cross multiply
    14,003.15x = 21,001.95 × 4,140.18
  4. Step 4: Simplify right side
    14,003.15x = 86,951,853.35
  5. Step 5: Solve for x
    x = 86,951,853.35/14,003.15
  6. Step 6: Final answer
    x = 6,209.45

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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.