Home / 13,775.63-19,004.91-8,994.05

Finding the Fourth Proportional to 13,775.63, 19,004.91 and 8,994.05

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Solution

The fourth proportional to 13,775.63, 19,004.91 and 8,994.05 is: 12,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.63 : 19,004.91 = 8,994.05 : x
  2. Step 2: Convert to fraction form
    13,775.63/19,004.91 = 8,994.05/x
  3. Step 3: Cross multiply
    13,775.63x = 19,004.91 × 8,994.05
  4. Step 4: Simplify right side
    13,775.63x = 170,931,050.44
  5. Step 5: Solve for x
    x = 170,931,050.44/13,775.63
  6. Step 6: Final answer
    x = 12,408.22

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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.