Home / 15,479.37-21,361.95-9,106.38

Finding the Fourth Proportional to 15,479.37, 21,361.95 and 9,106.38

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Solution

The fourth proportional to 15,479.37, 21,361.95 and 9,106.38 is: 12,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.37 : 21,361.95 = 9,106.38 : x
  2. Step 2: Convert to fraction form
    15,479.37/21,361.95 = 9,106.38/x
  3. Step 3: Cross multiply
    15,479.37x = 21,361.95 × 9,106.38
  4. Step 4: Simplify right side
    15,479.37x = 194,530,034.24
  5. Step 5: Solve for x
    x = 194,530,034.24/15,479.37
  6. Step 6: Final answer
    x = 12,567.05

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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.