Home / 14,385.77-19,858.50-9,672.78

Finding the Fourth Proportional to 14,385.77, 19,858.50 and 9,672.78

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Solution

The fourth proportional to 14,385.77, 19,858.50 and 9,672.78 is: 13,352.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.77 : 19,858.50 = 9,672.78 : x
  2. Step 2: Convert to fraction form
    14,385.77/19,858.50 = 9,672.78/x
  3. Step 3: Cross multiply
    14,385.77x = 19,858.50 × 9,672.78
  4. Step 4: Simplify right side
    14,385.77x = 192,086,901.63
  5. Step 5: Solve for x
    x = 192,086,901.63/14,385.77
  6. Step 6: Final answer
    x = 13,352.56

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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.