Home / 9,345.32-12,896.52-5,153.58

Finding the Fourth Proportional to 9,345.32, 12,896.52 and 5,153.58

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Solution

The fourth proportional to 9,345.32, 12,896.52 and 5,153.58 is: 7,111.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.32 : 12,896.52 = 5,153.58 : x
  2. Step 2: Convert to fraction form
    9,345.32/12,896.52 = 5,153.58/x
  3. Step 3: Cross multiply
    9,345.32x = 12,896.52 × 5,153.58
  4. Step 4: Simplify right side
    9,345.32x = 66,463,247.54
  5. Step 5: Solve for x
    x = 66,463,247.54/9,345.32
  6. Step 6: Final answer
    x = 7,111.93

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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.