Home / 13,335.42-20,000.66-4,900.08

Finding the Fourth Proportional to 13,335.42, 20,000.66 and 4,900.08

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Solution

The fourth proportional to 13,335.42, 20,000.66 and 4,900.08 is: 7,349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.42 : 20,000.66 = 4,900.08 : x
  2. Step 2: Convert to fraction form
    13,335.42/20,000.66 = 4,900.08/x
  3. Step 3: Cross multiply
    13,335.42x = 20,000.66 × 4,900.08
  4. Step 4: Simplify right side
    13,335.42x = 98,004,809.55
  5. Step 5: Solve for x
    x = 98,004,809.55/13,335.42
  6. Step 6: Final answer
    x = 7,349.21

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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.