Home / 12,878.01-19,316.66-4,113.45

Finding the Fourth Proportional to 12,878.01, 19,316.66 and 4,113.45

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Solution

The fourth proportional to 12,878.01, 19,316.66 and 4,113.45 is: 6,170.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878.01 : 19,316.66 = 4,113.45 : x
  2. Step 2: Convert to fraction form
    12,878.01/19,316.66 = 4,113.45/x
  3. Step 3: Cross multiply
    12,878.01x = 19,316.66 × 4,113.45
  4. Step 4: Simplify right side
    12,878.01x = 79,458,094.51
  5. Step 5: Solve for x
    x = 79,458,094.51/12,878.01
  6. Step 6: Final answer
    x = 6,170.06

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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.