Home / 15,787.36-23,685.68-13,328.16

Finding the Fourth Proportional to 15,787.36, 23,685.68 and 13,328.16

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Solution

The fourth proportional to 15,787.36, 23,685.68 and 13,328.16 is: 19,996.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.36 : 23,685.68 = 13,328.16 : x
  2. Step 2: Convert to fraction form
    15,787.36/23,685.68 = 13,328.16/x
  3. Step 3: Cross multiply
    15,787.36x = 23,685.68 × 13,328.16
  4. Step 4: Simplify right side
    15,787.36x = 315,686,532.75
  5. Step 5: Solve for x
    x = 315,686,532.75/15,787.36
  6. Step 6: Final answer
    x = 19,996.16

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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.