Home / 13,333.08-20,011.14-5,130.84

Finding the Fourth Proportional to 13,333.08, 20,011.14 and 5,130.84

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Solution

The fourth proportional to 13,333.08, 20,011.14 and 5,130.84 is: 7,700.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.08 : 20,011.14 = 5,130.84 : x
  2. Step 2: Convert to fraction form
    13,333.08/20,011.14 = 5,130.84/x
  3. Step 3: Cross multiply
    13,333.08x = 20,011.14 × 5,130.84
  4. Step 4: Simplify right side
    13,333.08x = 102,673,957.56
  5. Step 5: Solve for x
    x = 102,673,957.56/13,333.08
  6. Step 6: Final answer
    x = 7,700.69

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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.