Home / 13,218.58-19,580.53-13,071.16

Finding the Fourth Proportional to 13,218.58, 19,580.53 and 13,071.16

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Solution

The fourth proportional to 13,218.58, 19,580.53 and 13,071.16 is: 19,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.58 : 19,580.53 = 13,071.16 : x
  2. Step 2: Convert to fraction form
    13,218.58/19,580.53 = 13,071.16/x
  3. Step 3: Cross multiply
    13,218.58x = 19,580.53 × 13,071.16
  4. Step 4: Simplify right side
    13,218.58x = 255,940,240.51
  5. Step 5: Solve for x
    x = 255,940,240.51/13,218.58
  6. Step 6: Final answer
    x = 19,362.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.