Home / 14,455.40-21,672.59-9,763.78

Finding the Fourth Proportional to 14,455.40, 21,672.59 and 9,763.78

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Solution

The fourth proportional to 14,455.40, 21,672.59 and 9,763.78 is: 14,638.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.40 : 21,672.59 = 9,763.78 : x
  2. Step 2: Convert to fraction form
    14,455.40/21,672.59 = 9,763.78/x
  3. Step 3: Cross multiply
    14,455.40x = 21,672.59 × 9,763.78
  4. Step 4: Simplify right side
    14,455.40x = 211,606,400.79
  5. Step 5: Solve for x
    x = 211,606,400.79/14,455.40
  6. Step 6: Final answer
    x = 14,638.57

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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.