Home / 15,637.07-21,589.20-13,955.60

Finding the Fourth Proportional to 15,637.07, 21,589.20 and 13,955.60

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Solution

The fourth proportional to 15,637.07, 21,589.20 and 13,955.60 is: 19,267.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.07 : 21,589.20 = 13,955.60 : x
  2. Step 2: Convert to fraction form
    15,637.07/21,589.20 = 13,955.60/x
  3. Step 3: Cross multiply
    15,637.07x = 21,589.20 × 13,955.60
  4. Step 4: Simplify right side
    15,637.07x = 301,290,131.57
  5. Step 5: Solve for x
    x = 301,290,131.57/15,637.07
  6. Step 6: Final answer
    x = 19,267.69

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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.