Home / 14,205.09-19,603.10-8,240.30

Finding the Fourth Proportional to 14,205.09, 19,603.10 and 8,240.30

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Solution

The fourth proportional to 14,205.09, 19,603.10 and 8,240.30 is: 11,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,205.09 : 19,603.10 = 8,240.30 : x
  2. Step 2: Convert to fraction form
    14,205.09/19,603.10 = 8,240.30/x
  3. Step 3: Cross multiply
    14,205.09x = 19,603.10 × 8,240.30
  4. Step 4: Simplify right side
    14,205.09x = 161,535,285.71
  5. Step 5: Solve for x
    x = 161,535,285.71/14,205.09
  6. Step 6: Final answer
    x = 11,371.65

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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.