Home / 14,074.81-19,420.06-8,408.45

Finding the Fourth Proportional to 14,074.81, 19,420.06 and 8,408.45

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Solution

The fourth proportional to 14,074.81, 19,420.06 and 8,408.45 is: 11,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,074.81 : 19,420.06 = 8,408.45 : x
  2. Step 2: Convert to fraction form
    14,074.81/19,420.06 = 8,408.45/x
  3. Step 3: Cross multiply
    14,074.81x = 19,420.06 × 8,408.45
  4. Step 4: Simplify right side
    14,074.81x = 163,292,603.51
  5. Step 5: Solve for x
    x = 163,292,603.51/14,074.81
  6. Step 6: Final answer
    x = 11,601.76

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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.