Home / 16,618.22-22,931.55-9,165.74

Finding the Fourth Proportional to 16,618.22, 22,931.55 and 9,165.74

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Solution

The fourth proportional to 16,618.22, 22,931.55 and 9,165.74 is: 12,647.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.22 : 22,931.55 = 9,165.74 : x
  2. Step 2: Convert to fraction form
    16,618.22/22,931.55 = 9,165.74/x
  3. Step 3: Cross multiply
    16,618.22x = 22,931.55 × 9,165.74
  4. Step 4: Simplify right side
    16,618.22x = 210,184,625.10
  5. Step 5: Solve for x
    x = 210,184,625.10/16,618.22
  6. Step 6: Final answer
    x = 12,647.84

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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.