Home / 9,810.32-13,541.16-5,621.36

Finding the Fourth Proportional to 9,810.32, 13,541.16 and 5,621.36

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Solution

The fourth proportional to 9,810.32, 13,541.16 and 5,621.36 is: 7,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,810.32 : 13,541.16 = 5,621.36 : x
  2. Step 2: Convert to fraction form
    9,810.32/13,541.16 = 5,621.36/x
  3. Step 3: Cross multiply
    9,810.32x = 13,541.16 × 5,621.36
  4. Step 4: Simplify right side
    9,810.32x = 76,119,735.18
  5. Step 5: Solve for x
    x = 76,119,735.18/9,810.32
  6. Step 6: Final answer
    x = 7,759.15

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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.