Home / 14,008.55-21,015.95-6,112.35

Finding the Fourth Proportional to 14,008.55, 21,015.95 and 6,112.35

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Solution

The fourth proportional to 14,008.55, 21,015.95 and 6,112.35 is: 9,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.55 : 21,015.95 = 6,112.35 : x
  2. Step 2: Convert to fraction form
    14,008.55/21,015.95 = 6,112.35/x
  3. Step 3: Cross multiply
    14,008.55x = 21,015.95 × 6,112.35
  4. Step 4: Simplify right side
    14,008.55x = 128,456,811.42
  5. Step 5: Solve for x
    x = 128,456,811.42/14,008.55
  6. Step 6: Final answer
    x = 9,169.89

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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.