Home / 15,448.51-21,307.62-10,141.39

Finding the Fourth Proportional to 15,448.51, 21,307.62 and 10,141.39

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Solution

The fourth proportional to 15,448.51, 21,307.62 and 10,141.39 is: 13,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.51 : 21,307.62 = 10,141.39 : x
  2. Step 2: Convert to fraction form
    15,448.51/21,307.62 = 10,141.39/x
  3. Step 3: Cross multiply
    15,448.51x = 21,307.62 × 10,141.39
  4. Step 4: Simplify right side
    15,448.51x = 216,088,884.39
  5. Step 5: Solve for x
    x = 216,088,884.39/15,448.51
  6. Step 6: Final answer
    x = 13,987.68

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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.