Home / 19,186.16-28,779.31-9,821.07

Finding the Fourth Proportional to 19,186.16, 28,779.31 and 9,821.07

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Solution

The fourth proportional to 19,186.16, 28,779.31 and 9,821.07 is: 14,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.16 : 28,779.31 = 9,821.07 : x
  2. Step 2: Convert to fraction form
    19,186.16/28,779.31 = 9,821.07/x
  3. Step 3: Cross multiply
    19,186.16x = 28,779.31 × 9,821.07
  4. Step 4: Simplify right side
    19,186.16x = 282,643,618.06
  5. Step 5: Solve for x
    x = 282,643,618.06/19,186.16
  6. Step 6: Final answer
    x = 14,731.64

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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.