Home / 13,972.38-19,281.51-7,683.90

Finding the Fourth Proportional to 13,972.38, 19,281.51 and 7,683.90

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Solution

The fourth proportional to 13,972.38, 19,281.51 and 7,683.90 is: 10,603.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.38 : 19,281.51 = 7,683.90 : x
  2. Step 2: Convert to fraction form
    13,972.38/19,281.51 = 7,683.90/x
  3. Step 3: Cross multiply
    13,972.38x = 19,281.51 × 7,683.90
  4. Step 4: Simplify right side
    13,972.38x = 148,157,194.69
  5. Step 5: Solve for x
    x = 148,157,194.69/13,972.38
  6. Step 6: Final answer
    x = 10,603.58

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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.