Home / 14,782.49-20,399.66-8,068.40

Finding the Fourth Proportional to 14,782.49, 20,399.66 and 8,068.40

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Solution

The fourth proportional to 14,782.49, 20,399.66 and 8,068.40 is: 11,134.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,782.49 : 20,399.66 = 8,068.40 : x
  2. Step 2: Convert to fraction form
    14,782.49/20,399.66 = 8,068.40/x
  3. Step 3: Cross multiply
    14,782.49x = 20,399.66 × 8,068.40
  4. Step 4: Simplify right side
    14,782.49x = 164,592,474.40
  5. Step 5: Solve for x
    x = 164,592,474.40/14,782.49
  6. Step 6: Final answer
    x = 11,134.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.