Home / 13,645.32-18,830.37-7,677.03

Finding the Fourth Proportional to 13,645.32, 18,830.37 and 7,677.03

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Solution

The fourth proportional to 13,645.32, 18,830.37 and 7,677.03 is: 10,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.32 : 18,830.37 = 7,677.03 : x
  2. Step 2: Convert to fraction form
    13,645.32/18,830.37 = 7,677.03/x
  3. Step 3: Cross multiply
    13,645.32x = 18,830.37 × 7,677.03
  4. Step 4: Simplify right side
    13,645.32x = 144,561,315.40
  5. Step 5: Solve for x
    x = 144,561,315.40/13,645.32
  6. Step 6: Final answer
    x = 10,594.20

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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.