Home / 13,820.42-19,058.78-8,775.74

Finding the Fourth Proportional to 13,820.42, 19,058.78 and 8,775.74

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Solution

The fourth proportional to 13,820.42, 19,058.78 and 8,775.74 is: 12,102.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.42 : 19,058.78 = 8,775.74 : x
  2. Step 2: Convert to fraction form
    13,820.42/19,058.78 = 8,775.74/x
  3. Step 3: Cross multiply
    13,820.42x = 19,058.78 × 8,775.74
  4. Step 4: Simplify right side
    13,820.42x = 167,254,967.58
  5. Step 5: Solve for x
    x = 167,254,967.58/13,820.42
  6. Step 6: Final answer
    x = 12,102.02

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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.