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Finding the Fourth Proportional to 9,390.53, 14,085.79 and 2,816.71

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Solution

The fourth proportional to 9,390.53, 14,085.79 and 2,816.71 is: 4,225.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.53 : 14,085.79 = 2,816.71 : x
  2. Step 2: Convert to fraction form
    9,390.53/14,085.79 = 2,816.71/x
  3. Step 3: Cross multiply
    9,390.53x = 14,085.79 × 2,816.71
  4. Step 4: Simplify right side
    9,390.53x = 39,675,543.29
  5. Step 5: Solve for x
    x = 39,675,543.29/9,390.53
  6. Step 6: Final answer
    x = 4,225.06

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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.