Home / 13,916.75-19,205.15-7,543.35

Finding the Fourth Proportional to 13,916.75, 19,205.15 and 7,543.35

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Solution

The fourth proportional to 13,916.75, 19,205.15 and 7,543.35 is: 10,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.75 : 19,205.15 = 7,543.35 : x
  2. Step 2: Convert to fraction form
    13,916.75/19,205.15 = 7,543.35/x
  3. Step 3: Cross multiply
    13,916.75x = 19,205.15 × 7,543.35
  4. Step 4: Simplify right side
    13,916.75x = 144,871,130.54
  5. Step 5: Solve for x
    x = 144,871,130.54/13,916.75
  6. Step 6: Final answer
    x = 10,409.84

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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.