Home / 13,875.53-19,148.20-7,907.45

Finding the Fourth Proportional to 13,875.53, 19,148.20 and 7,907.45

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Solution

The fourth proportional to 13,875.53, 19,148.20 and 7,907.45 is: 10,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.53 : 19,148.20 = 7,907.45 : x
  2. Step 2: Convert to fraction form
    13,875.53/19,148.20 = 7,907.45/x
  3. Step 3: Cross multiply
    13,875.53x = 19,148.20 × 7,907.45
  4. Step 4: Simplify right side
    13,875.53x = 151,413,318.58
  5. Step 5: Solve for x
    x = 151,413,318.58/13,875.53
  6. Step 6: Final answer
    x = 10,912.26

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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.