Home / 13,811.22-19,075.32-9,116.46

Finding the Fourth Proportional to 13,811.22, 19,075.32 and 9,116.46

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Solution

The fourth proportional to 13,811.22, 19,075.32 and 9,116.46 is: 12,591.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.22 : 19,075.32 = 9,116.46 : x
  2. Step 2: Convert to fraction form
    13,811.22/19,075.32 = 9,116.46/x
  3. Step 3: Cross multiply
    13,811.22x = 19,075.32 × 9,116.46
  4. Step 4: Simplify right side
    13,811.22x = 173,899,391.77
  5. Step 5: Solve for x
    x = 173,899,391.77/13,811.22
  6. Step 6: Final answer
    x = 12,591.17

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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.