Home / 10,608.16-15,888.01-5,065.40

Finding the Fourth Proportional to 10,608.16, 15,888.01 and 5,065.40

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Solution

The fourth proportional to 10,608.16, 15,888.01 and 5,065.40 is: 7,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,608.16 : 15,888.01 = 5,065.40 : x
  2. Step 2: Convert to fraction form
    10,608.16/15,888.01 = 5,065.40/x
  3. Step 3: Cross multiply
    10,608.16x = 15,888.01 × 5,065.40
  4. Step 4: Simplify right side
    10,608.16x = 80,479,162.41
  5. Step 5: Solve for x
    x = 80,479,162.41/10,608.16
  6. Step 6: Final answer
    x = 7,586.54

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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.