Home / 14,378.21-19,840.54-10,603.41

Finding the Fourth Proportional to 14,378.21, 19,840.54 and 10,603.41

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Solution

The fourth proportional to 14,378.21, 19,840.54 and 10,603.41 is: 14,631.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.21 : 19,840.54 = 10,603.41 : x
  2. Step 2: Convert to fraction form
    14,378.21/19,840.54 = 10,603.41/x
  3. Step 3: Cross multiply
    14,378.21x = 19,840.54 × 10,603.41
  4. Step 4: Simplify right side
    14,378.21x = 210,377,410.82
  5. Step 5: Solve for x
    x = 210,377,410.82/14,378.21
  6. Step 6: Final answer
    x = 14,631.68

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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.