Home / 7,128.16-9,837.36-4,333.12

Finding the Fourth Proportional to 7,128.16, 9,837.36 and 4,333.12

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Solution

The fourth proportional to 7,128.16, 9,837.36 and 4,333.12 is: 5,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.16 : 9,837.36 = 4,333.12 : x
  2. Step 2: Convert to fraction form
    7,128.16/9,837.36 = 4,333.12/x
  3. Step 3: Cross multiply
    7,128.16x = 9,837.36 × 4,333.12
  4. Step 4: Simplify right side
    7,128.16x = 42,626,461.36
  5. Step 5: Solve for x
    x = 42,626,461.36/7,128.16
  6. Step 6: Final answer
    x = 5,980.01

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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.