Home / 14,159.13-19,539.59-7,785.83

Finding the Fourth Proportional to 14,159.13, 19,539.59 and 7,785.83

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Solution

The fourth proportional to 14,159.13, 19,539.59 and 7,785.83 is: 10,744.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.13 : 19,539.59 = 7,785.83 : x
  2. Step 2: Convert to fraction form
    14,159.13/19,539.59 = 7,785.83/x
  3. Step 3: Cross multiply
    14,159.13x = 19,539.59 × 7,785.83
  4. Step 4: Simplify right side
    14,159.13x = 152,131,926.01
  5. Step 5: Solve for x
    x = 152,131,926.01/14,159.13
  6. Step 6: Final answer
    x = 10,744.44

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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.