Home / 14,266.80-21,507.12-13,315.32

Finding the Fourth Proportional to 14,266.80, 21,507.12 and 13,315.32

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Solution

The fourth proportional to 14,266.80, 21,507.12 and 13,315.32 is: 20,072.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.80 : 21,507.12 = 13,315.32 : x
  2. Step 2: Convert to fraction form
    14,266.80/21,507.12 = 13,315.32/x
  3. Step 3: Cross multiply
    14,266.80x = 21,507.12 × 13,315.32
  4. Step 4: Simplify right side
    14,266.80x = 286,374,185.08
  5. Step 5: Solve for x
    x = 286,374,185.08/14,266.80
  6. Step 6: Final answer
    x = 20,072.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.