Home / 14,159.80-19,539.12-10,804.78

Finding the Fourth Proportional to 14,159.80, 19,539.12 and 10,804.78

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Solution

The fourth proportional to 14,159.80, 19,539.12 and 10,804.78 is: 14,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.80 : 19,539.12 = 10,804.78 : x
  2. Step 2: Convert to fraction form
    14,159.80/19,539.12 = 10,804.78/x
  3. Step 3: Cross multiply
    14,159.80x = 19,539.12 × 10,804.78
  4. Step 4: Simplify right side
    14,159.80x = 211,115,892.99
  5. Step 5: Solve for x
    x = 211,115,892.99/14,159.80
  6. Step 6: Final answer
    x = 14,909.53

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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.