Home / 13,865.65-19,112.09-10,835.44

Finding the Fourth Proportional to 13,865.65, 19,112.09 and 10,835.44

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Solution

The fourth proportional to 13,865.65, 19,112.09 and 10,835.44 is: 14,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.65 : 19,112.09 = 10,835.44 : x
  2. Step 2: Convert to fraction form
    13,865.65/19,112.09 = 10,835.44/x
  3. Step 3: Cross multiply
    13,865.65x = 19,112.09 × 10,835.44
  4. Step 4: Simplify right side
    13,865.65x = 207,087,802.51
  5. Step 5: Solve for x
    x = 207,087,802.51/13,865.65
  6. Step 6: Final answer
    x = 14,935.31

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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.