Home / 8,784.36-13,116.37-7,485.16

Finding the Fourth Proportional to 8,784.36, 13,116.37 and 7,485.16

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Solution

The fourth proportional to 8,784.36, 13,116.37 and 7,485.16 is: 11,176.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.36 : 13,116.37 = 7,485.16 : x
  2. Step 2: Convert to fraction form
    8,784.36/13,116.37 = 7,485.16/x
  3. Step 3: Cross multiply
    8,784.36x = 13,116.37 × 7,485.16
  4. Step 4: Simplify right side
    8,784.36x = 98,178,128.07
  5. Step 5: Solve for x
    x = 98,178,128.07/8,784.36
  6. Step 6: Final answer
    x = 11,176.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.