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Finding the Fourth Proportional to 12,889.04, 19,333.48 and 3,655.04

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Solution

The fourth proportional to 12,889.04, 19,333.48 and 3,655.04 is: 5,482.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889.04 : 19,333.48 = 3,655.04 : x
  2. Step 2: Convert to fraction form
    12,889.04/19,333.48 = 3,655.04/x
  3. Step 3: Cross multiply
    12,889.04x = 19,333.48 × 3,655.04
  4. Step 4: Simplify right side
    12,889.04x = 70,664,642.74
  5. Step 5: Solve for x
    x = 70,664,642.74/12,889.04
  6. Step 6: Final answer
    x = 5,482.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.