Home / 14,045.39-19,343.16-13,739.21

Finding the Fourth Proportional to 14,045.39, 19,343.16 and 13,739.21

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Solution

The fourth proportional to 14,045.39, 19,343.16 and 13,739.21 is: 18,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.39 : 19,343.16 = 13,739.21 : x
  2. Step 2: Convert to fraction form
    14,045.39/19,343.16 = 13,739.21/x
  3. Step 3: Cross multiply
    14,045.39x = 19,343.16 × 13,739.21
  4. Step 4: Simplify right side
    14,045.39x = 265,759,737.30
  5. Step 5: Solve for x
    x = 265,759,737.30/14,045.39
  6. Step 6: Final answer
    x = 18,921.49

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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.