Home / 7,328.78-10,111.32-4,677.05

Finding the Fourth Proportional to 7,328.78, 10,111.32 and 4,677.05

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Solution

The fourth proportional to 7,328.78, 10,111.32 and 4,677.05 is: 6,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.78 : 10,111.32 = 4,677.05 : x
  2. Step 2: Convert to fraction form
    7,328.78/10,111.32 = 4,677.05/x
  3. Step 3: Cross multiply
    7,328.78x = 10,111.32 × 4,677.05
  4. Step 4: Simplify right side
    7,328.78x = 47,291,149.21
  5. Step 5: Solve for x
    x = 47,291,149.21/7,328.78
  6. Step 6: Final answer
    x = 6,452.80

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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.