Home / 14,028.19-19,358.90-7,740.56

Finding the Fourth Proportional to 14,028.19, 19,358.90 and 7,740.56

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Solution

The fourth proportional to 14,028.19, 19,358.90 and 7,740.56 is: 10,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.19 : 19,358.90 = 7,740.56 : x
  2. Step 2: Convert to fraction form
    14,028.19/19,358.90 = 7,740.56/x
  3. Step 3: Cross multiply
    14,028.19x = 19,358.90 × 7,740.56
  4. Step 4: Simplify right side
    14,028.19x = 149,848,765.71
  5. Step 5: Solve for x
    x = 149,848,765.71/14,028.19
  6. Step 6: Final answer
    x = 10,681.98

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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.