Home / 15,415.36-21,272.46-9,041.08

Finding the Fourth Proportional to 15,415.36, 21,272.46 and 9,041.08

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Solution

The fourth proportional to 15,415.36, 21,272.46 and 9,041.08 is: 12,476.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.36 : 21,272.46 = 9,041.08 : x
  2. Step 2: Convert to fraction form
    15,415.36/21,272.46 = 9,041.08/x
  3. Step 3: Cross multiply
    15,415.36x = 21,272.46 × 9,041.08
  4. Step 4: Simplify right side
    15,415.36x = 192,326,012.66
  5. Step 5: Solve for x
    x = 192,326,012.66/15,415.36
  6. Step 6: Final answer
    x = 12,476.26

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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.