Home / 13,943.50-19,242.03-7,656.28

Finding the Fourth Proportional to 13,943.50, 19,242.03 and 7,656.28

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Solution

The fourth proportional to 13,943.50, 19,242.03 and 7,656.28 is: 10,565.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.50 : 19,242.03 = 7,656.28 : x
  2. Step 2: Convert to fraction form
    13,943.50/19,242.03 = 7,656.28/x
  3. Step 3: Cross multiply
    13,943.50x = 19,242.03 × 7,656.28
  4. Step 4: Simplify right side
    13,943.50x = 147,322,369.45
  5. Step 5: Solve for x
    x = 147,322,369.45/13,943.50
  6. Step 6: Final answer
    x = 10,565.67

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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.