Home / 14,378.86-21,561.45-5,017.74

Finding the Fourth Proportional to 14,378.86, 21,561.45 and 5,017.74

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Solution

The fourth proportional to 14,378.86, 21,561.45 and 5,017.74 is: 7,524.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.86 : 21,561.45 = 5,017.74 : x
  2. Step 2: Convert to fraction form
    14,378.86/21,561.45 = 5,017.74/x
  3. Step 3: Cross multiply
    14,378.86x = 21,561.45 × 5,017.74
  4. Step 4: Simplify right side
    14,378.86x = 108,189,750.12
  5. Step 5: Solve for x
    x = 108,189,750.12/14,378.86
  6. Step 6: Final answer
    x = 7,524.22

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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.