Home / 9,739.20-13,440.24-5,547.36

Finding the Fourth Proportional to 9,739.20, 13,440.24 and 5,547.36

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Solution

The fourth proportional to 9,739.20, 13,440.24 and 5,547.36 is: 7,655.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,739.20 : 13,440.24 = 5,547.36 : x
  2. Step 2: Convert to fraction form
    9,739.20/13,440.24 = 5,547.36/x
  3. Step 3: Cross multiply
    9,739.20x = 13,440.24 × 5,547.36
  4. Step 4: Simplify right side
    9,739.20x = 74,557,849.77
  5. Step 5: Solve for x
    x = 74,557,849.77/9,739.20
  6. Step 6: Final answer
    x = 7,655.44

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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.