Home / 19,011.08-28,518.06-5,161.16

Finding the Fourth Proportional to 19,011.08, 28,518.06 and 5,161.16

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Solution

The fourth proportional to 19,011.08, 28,518.06 and 5,161.16 is: 7,742.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011.08 : 28,518.06 = 5,161.16 : x
  2. Step 2: Convert to fraction form
    19,011.08/28,518.06 = 5,161.16/x
  3. Step 3: Cross multiply
    19,011.08x = 28,518.06 × 5,161.16
  4. Step 4: Simplify right side
    19,011.08x = 147,186,270.55
  5. Step 5: Solve for x
    x = 147,186,270.55/19,011.08
  6. Step 6: Final answer
    x = 7,742.13

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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.