Home / 9,868.65-13,618.53-5,392.29

Finding the Fourth Proportional to 9,868.65, 13,618.53 and 5,392.29

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Solution

The fourth proportional to 9,868.65, 13,618.53 and 5,392.29 is: 7,441.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,868.65 : 13,618.53 = 5,392.29 : x
  2. Step 2: Convert to fraction form
    9,868.65/13,618.53 = 5,392.29/x
  3. Step 3: Cross multiply
    9,868.65x = 13,618.53 × 5,392.29
  4. Step 4: Simplify right side
    9,868.65x = 73,435,063.13
  5. Step 5: Solve for x
    x = 73,435,063.13/9,868.65
  6. Step 6: Final answer
    x = 7,441.25

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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.