Home / 10,483.72-15,718.80-5,555.68

Finding the Fourth Proportional to 10,483.72, 15,718.80 and 5,555.68

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Solution

The fourth proportional to 10,483.72, 15,718.80 and 5,555.68 is: 8,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,483.72 : 15,718.80 = 5,555.68 : x
  2. Step 2: Convert to fraction form
    10,483.72/15,718.80 = 5,555.68/x
  3. Step 3: Cross multiply
    10,483.72x = 15,718.80 × 5,555.68
  4. Step 4: Simplify right side
    10,483.72x = 87,328,622.78
  5. Step 5: Solve for x
    x = 87,328,622.78/10,483.72
  6. Step 6: Final answer
    x = 8,329.93

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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.