Home / 13,448.03-18,558.32-7,479.74

Finding the Fourth Proportional to 13,448.03, 18,558.32 and 7,479.74

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Solution

The fourth proportional to 13,448.03, 18,558.32 and 7,479.74 is: 10,322.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.03 : 18,558.32 = 7,479.74 : x
  2. Step 2: Convert to fraction form
    13,448.03/18,558.32 = 7,479.74/x
  3. Step 3: Cross multiply
    13,448.03x = 18,558.32 × 7,479.74
  4. Step 4: Simplify right side
    13,448.03x = 138,811,417.43
  5. Step 5: Solve for x
    x = 138,811,417.43/13,448.03
  6. Step 6: Final answer
    x = 10,322.07

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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.