Home / 14,631.08-20,190.75-7,916.56

Finding the Fourth Proportional to 14,631.08, 20,190.75 and 7,916.56

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Solution

The fourth proportional to 14,631.08, 20,190.75 and 7,916.56 is: 10,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.08 : 20,190.75 = 7,916.56 : x
  2. Step 2: Convert to fraction form
    14,631.08/20,190.75 = 7,916.56/x
  3. Step 3: Cross multiply
    14,631.08x = 20,190.75 × 7,916.56
  4. Step 4: Simplify right side
    14,631.08x = 159,841,244.24
  5. Step 5: Solve for x
    x = 159,841,244.24/14,631.08
  6. Step 6: Final answer
    x = 10,924.77

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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.