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Finding the Fourth Proportional to 9,888.86, 14,833.41 and 3,315.07

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Solution

The fourth proportional to 9,888.86, 14,833.41 and 3,315.07 is: 4,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.86 : 14,833.41 = 3,315.07 : x
  2. Step 2: Convert to fraction form
    9,888.86/14,833.41 = 3,315.07/x
  3. Step 3: Cross multiply
    9,888.86x = 14,833.41 × 3,315.07
  4. Step 4: Simplify right side
    9,888.86x = 49,173,792.49
  5. Step 5: Solve for x
    x = 49,173,792.49/9,888.86
  6. Step 6: Final answer
    x = 4,972.65

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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.