Home / 15,188.42-20,959.34-11,208.08

Finding the Fourth Proportional to 15,188.42, 20,959.34 and 11,208.08

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Solution

The fourth proportional to 15,188.42, 20,959.34 and 11,208.08 is: 15,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.42 : 20,959.34 = 11,208.08 : x
  2. Step 2: Convert to fraction form
    15,188.42/20,959.34 = 11,208.08/x
  3. Step 3: Cross multiply
    15,188.42x = 20,959.34 × 11,208.08
  4. Step 4: Simplify right side
    15,188.42x = 234,913,798.63
  5. Step 5: Solve for x
    x = 234,913,798.63/15,188.42
  6. Step 6: Final answer
    x = 15,466.64

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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.