Home / 13,815.16-19,065.06-7,527.64

Finding the Fourth Proportional to 13,815.16, 19,065.06 and 7,527.64

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Solution

The fourth proportional to 13,815.16, 19,065.06 and 7,527.64 is: 10,388.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.16 : 19,065.06 = 7,527.64 : x
  2. Step 2: Convert to fraction form
    13,815.16/19,065.06 = 7,527.64/x
  3. Step 3: Cross multiply
    13,815.16x = 19,065.06 × 7,527.64
  4. Step 4: Simplify right side
    13,815.16x = 143,514,908.26
  5. Step 5: Solve for x
    x = 143,514,908.26/13,815.16
  6. Step 6: Final answer
    x = 10,388.22

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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.