Home / 13,971.15-19,280.19-7,683.53

Finding the Fourth Proportional to 13,971.15, 19,280.19 and 7,683.53

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Solution

The fourth proportional to 13,971.15, 19,280.19 and 7,683.53 is: 10,603.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.15 : 19,280.19 = 7,683.53 : x
  2. Step 2: Convert to fraction form
    13,971.15/19,280.19 = 7,683.53/x
  3. Step 3: Cross multiply
    13,971.15x = 19,280.19 × 7,683.53
  4. Step 4: Simplify right side
    13,971.15x = 148,139,821.87
  5. Step 5: Solve for x
    x = 148,139,821.87/13,971.15
  6. Step 6: Final answer
    x = 10,603.27

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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.