Home / 14,378.40-21,566.16-4,517.40

Finding the Fourth Proportional to 14,378.40, 21,566.16 and 4,517.40

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Solution

The fourth proportional to 14,378.40, 21,566.16 and 4,517.40 is: 6,775.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.40 : 21,566.16 = 4,517.40 : x
  2. Step 2: Convert to fraction form
    14,378.40/21,566.16 = 4,517.40/x
  3. Step 3: Cross multiply
    14,378.40x = 21,566.16 × 4,517.40
  4. Step 4: Simplify right side
    14,378.40x = 97,422,971.18
  5. Step 5: Solve for x
    x = 97,422,971.18/14,378.40
  6. Step 6: Final answer
    x = 6,775.65

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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.