Home / 15,435.05-23,086.64-12,886.65

Finding the Fourth Proportional to 15,435.05, 23,086.64 and 12,886.65

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Solution

The fourth proportional to 15,435.05, 23,086.64 and 12,886.65 is: 19,274.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.05 : 23,086.64 = 12,886.65 : x
  2. Step 2: Convert to fraction form
    15,435.05/23,086.64 = 12,886.65/x
  3. Step 3: Cross multiply
    15,435.05x = 23,086.64 × 12,886.65
  4. Step 4: Simplify right side
    15,435.05x = 297,509,384.92
  5. Step 5: Solve for x
    x = 297,509,384.92/15,435.05
  6. Step 6: Final answer
    x = 19,274.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.