Home / 10,878.68-15,049.32-10,485.02

Finding the Fourth Proportional to 10,878.68, 15,049.32 and 10,485.02

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Solution

The fourth proportional to 10,878.68, 15,049.32 and 10,485.02 is: 14,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.68 : 15,049.32 = 10,485.02 : x
  2. Step 2: Convert to fraction form
    10,878.68/15,049.32 = 10,485.02/x
  3. Step 3: Cross multiply
    10,878.68x = 15,049.32 × 10,485.02
  4. Step 4: Simplify right side
    10,878.68x = 157,792,421.19
  5. Step 5: Solve for x
    x = 157,792,421.19/10,878.68
  6. Step 6: Final answer
    x = 14,504.74

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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.