Home / 13,447.03-18,554.63-7,477.91

Finding the Fourth Proportional to 13,447.03, 18,554.63 and 7,477.91

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Solution

The fourth proportional to 13,447.03, 18,554.63 and 7,477.91 is: 10,318.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.03 : 18,554.63 = 7,477.91 : x
  2. Step 2: Convert to fraction form
    13,447.03/18,554.63 = 7,477.91/x
  3. Step 3: Cross multiply
    13,447.03x = 18,554.63 × 7,477.91
  4. Step 4: Simplify right side
    13,447.03x = 138,749,853.22
  5. Step 5: Solve for x
    x = 138,749,853.22/13,447.03
  6. Step 6: Final answer
    x = 10,318.26

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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.