Home / 19,319.85-26,651.98-12,158.64

Finding the Fourth Proportional to 19,319.85, 26,651.98 and 12,158.64

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Solution

The fourth proportional to 19,319.85, 26,651.98 and 12,158.64 is: 16,773.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.85 : 26,651.98 = 12,158.64 : x
  2. Step 2: Convert to fraction form
    19,319.85/26,651.98 = 12,158.64/x
  3. Step 3: Cross multiply
    19,319.85x = 26,651.98 × 12,158.64
  4. Step 4: Simplify right side
    19,319.85x = 324,051,830.11
  5. Step 5: Solve for x
    x = 324,051,830.11/19,319.85
  6. Step 6: Final answer
    x = 16,773.00

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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.