Home / 10,351.63-14,285.55-5,636.21

Finding the Fourth Proportional to 10,351.63, 14,285.55 and 5,636.21

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Solution

The fourth proportional to 10,351.63, 14,285.55 and 5,636.21 is: 7,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,351.63 : 14,285.55 = 5,636.21 : x
  2. Step 2: Convert to fraction form
    10,351.63/14,285.55 = 5,636.21/x
  3. Step 3: Cross multiply
    10,351.63x = 14,285.55 × 5,636.21
  4. Step 4: Simplify right side
    10,351.63x = 80,516,331.58
  5. Step 5: Solve for x
    x = 80,516,331.58/10,351.63
  6. Step 6: Final answer
    x = 7,778.13

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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.