Home / 10,878.48-16,319.13-3,485.19

Finding the Fourth Proportional to 10,878.48, 16,319.13 and 3,485.19

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Solution

The fourth proportional to 10,878.48, 16,319.13 and 3,485.19 is: 5,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.48 : 16,319.13 = 3,485.19 : x
  2. Step 2: Convert to fraction form
    10,878.48/16,319.13 = 3,485.19/x
  3. Step 3: Cross multiply
    10,878.48x = 16,319.13 × 3,485.19
  4. Step 4: Simplify right side
    10,878.48x = 56,875,268.68
  5. Step 5: Solve for x
    x = 56,875,268.68/10,878.48
  6. Step 6: Final answer
    x = 5,228.24

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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.