Home / 19,186.18-28,771.71-9,322.54

Finding the Fourth Proportional to 19,186.18, 28,771.71 and 9,322.54

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Solution

The fourth proportional to 19,186.18, 28,771.71 and 9,322.54 is: 13,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.18 : 28,771.71 = 9,322.54 : x
  2. Step 2: Convert to fraction form
    19,186.18/28,771.71 = 9,322.54/x
  3. Step 3: Cross multiply
    19,186.18x = 28,771.71 × 9,322.54
  4. Step 4: Simplify right side
    19,186.18x = 268,225,417.34
  5. Step 5: Solve for x
    x = 268,225,417.34/19,186.18
  6. Step 6: Final answer
    x = 13,980.14

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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.