Home / 15,448.64-21,307.79-10,141.52

Finding the Fourth Proportional to 15,448.64, 21,307.79 and 10,141.52

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Solution

The fourth proportional to 15,448.64, 21,307.79 and 10,141.52 is: 13,987.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.64 : 21,307.79 = 10,141.52 : x
  2. Step 2: Convert to fraction form
    15,448.64/21,307.79 = 10,141.52/x
  3. Step 3: Cross multiply
    15,448.64x = 21,307.79 × 10,141.52
  4. Step 4: Simplify right side
    15,448.64x = 216,093,297.26
  5. Step 5: Solve for x
    x = 216,093,297.26/15,448.64
  6. Step 6: Final answer
    x = 13,987.86

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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.