Home / 14,277.08-21,420.70-6,378.86

Finding the Fourth Proportional to 14,277.08, 21,420.70 and 6,378.86

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Solution

The fourth proportional to 14,277.08, 21,420.70 and 6,378.86 is: 9,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,277.08 : 21,420.70 = 6,378.86 : x
  2. Step 2: Convert to fraction form
    14,277.08/21,420.70 = 6,378.86/x
  3. Step 3: Cross multiply
    14,277.08x = 21,420.70 × 6,378.86
  4. Step 4: Simplify right side
    14,277.08x = 136,639,646.40
  5. Step 5: Solve for x
    x = 136,639,646.40/14,277.08
  6. Step 6: Final answer
    x = 9,570.56

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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.