Home / 13,993.93-19,278.76-9,737.68

Finding the Fourth Proportional to 13,993.93, 19,278.76 and 9,737.68

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Solution

The fourth proportional to 13,993.93, 19,278.76 and 9,737.68 is: 13,415.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.93 : 19,278.76 = 9,737.68 : x
  2. Step 2: Convert to fraction form
    13,993.93/19,278.76 = 9,737.68/x
  3. Step 3: Cross multiply
    13,993.93x = 19,278.76 × 9,737.68
  4. Step 4: Simplify right side
    13,993.93x = 187,730,395.68
  5. Step 5: Solve for x
    x = 187,730,395.68/13,993.93
  6. Step 6: Final answer
    x = 13,415.13

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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.