Home / 9,718.48-13,412.64-5,527.36

Finding the Fourth Proportional to 9,718.48, 13,412.64 and 5,527.36

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Solution

The fourth proportional to 9,718.48, 13,412.64 and 5,527.36 is: 7,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,718.48 : 13,412.64 = 5,527.36 : x
  2. Step 2: Convert to fraction form
    9,718.48/13,412.64 = 5,527.36/x
  3. Step 3: Cross multiply
    9,718.48x = 13,412.64 × 5,527.36
  4. Step 4: Simplify right side
    9,718.48x = 74,136,489.83
  5. Step 5: Solve for x
    x = 74,136,489.83/9,718.48
  6. Step 6: Final answer
    x = 7,628.40

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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.