Home / 9,890.70-14,845.32-5,214.18

Finding the Fourth Proportional to 9,890.70, 14,845.32 and 5,214.18

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Solution

The fourth proportional to 9,890.70, 14,845.32 and 5,214.18 is: 7,826.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.70 : 14,845.32 = 5,214.18 : x
  2. Step 2: Convert to fraction form
    9,890.70/14,845.32 = 5,214.18/x
  3. Step 3: Cross multiply
    9,890.70x = 14,845.32 × 5,214.18
  4. Step 4: Simplify right side
    9,890.70x = 77,406,170.64
  5. Step 5: Solve for x
    x = 77,406,170.64/9,890.70
  6. Step 6: Final answer
    x = 7,826.16

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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.