Home / 13,159.71-19,739.65-5,262.89

Finding the Fourth Proportional to 13,159.71, 19,739.65 and 5,262.89

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Solution

The fourth proportional to 13,159.71, 19,739.65 and 5,262.89 is: 7,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.71 : 19,739.65 = 5,262.89 : x
  2. Step 2: Convert to fraction form
    13,159.71/19,739.65 = 5,262.89/x
  3. Step 3: Cross multiply
    13,159.71x = 19,739.65 × 5,262.89
  4. Step 4: Simplify right side
    13,159.71x = 103,887,494.73
  5. Step 5: Solve for x
    x = 103,887,494.73/13,159.71
  6. Step 6: Final answer
    x = 7,894.36

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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.