Home / 9,368.90-14,055.06-3,128.32

Finding the Fourth Proportional to 9,368.90, 14,055.06 and 3,128.32

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Solution

The fourth proportional to 9,368.90, 14,055.06 and 3,128.32 is: 4,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.90 : 14,055.06 = 3,128.32 : x
  2. Step 2: Convert to fraction form
    9,368.90/14,055.06 = 3,128.32/x
  3. Step 3: Cross multiply
    9,368.90x = 14,055.06 × 3,128.32
  4. Step 4: Simplify right side
    9,368.90x = 43,968,655.02
  5. Step 5: Solve for x
    x = 43,968,655.02/9,368.90
  6. Step 6: Final answer
    x = 4,693.05

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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.