Home / 9,916.12-13,683.38-5,666.34

Finding the Fourth Proportional to 9,916.12, 13,683.38 and 5,666.34

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Solution

The fourth proportional to 9,916.12, 13,683.38 and 5,666.34 is: 7,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.12 : 13,683.38 = 5,666.34 : x
  2. Step 2: Convert to fraction form
    9,916.12/13,683.38 = 5,666.34/x
  3. Step 3: Cross multiply
    9,916.12x = 13,683.38 × 5,666.34
  4. Step 4: Simplify right side
    9,916.12x = 77,534,669.26
  5. Step 5: Solve for x
    x = 77,534,669.26/9,916.12
  6. Step 6: Final answer
    x = 7,819.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.