Home / 19,987.38-29,975.40-5,946.84

Finding the Fourth Proportional to 19,987.38, 29,975.40 and 5,946.84

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Solution

The fourth proportional to 19,987.38, 29,975.40 and 5,946.84 is: 8,918.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.38 : 29,975.40 = 5,946.84 : x
  2. Step 2: Convert to fraction form
    19,987.38/29,975.40 = 5,946.84/x
  3. Step 3: Cross multiply
    19,987.38x = 29,975.40 × 5,946.84
  4. Step 4: Simplify right side
    19,987.38x = 178,258,907.74
  5. Step 5: Solve for x
    x = 178,258,907.74/19,987.38
  6. Step 6: Final answer
    x = 8,918.57

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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.