Home / 13,447.74-18,557.73-7,479.93

Finding the Fourth Proportional to 13,447.74, 18,557.73 and 7,479.93

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Solution

The fourth proportional to 13,447.74, 18,557.73 and 7,479.93 is: 10,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.74 : 18,557.73 = 7,479.93 : x
  2. Step 2: Convert to fraction form
    13,447.74/18,557.73 = 7,479.93/x
  3. Step 3: Cross multiply
    13,447.74x = 18,557.73 × 7,479.93
  4. Step 4: Simplify right side
    13,447.74x = 138,810,521.36
  5. Step 5: Solve for x
    x = 138,810,521.36/13,447.74
  6. Step 6: Final answer
    x = 10,322.22

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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.