Home / 13,979.18-19,308.30-10,458.02

Finding the Fourth Proportional to 13,979.18, 19,308.30 and 10,458.02

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Solution

The fourth proportional to 13,979.18, 19,308.30 and 10,458.02 is: 14,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.18 : 19,308.30 = 10,458.02 : x
  2. Step 2: Convert to fraction form
    13,979.18/19,308.30 = 10,458.02/x
  3. Step 3: Cross multiply
    13,979.18x = 19,308.30 × 10,458.02
  4. Step 4: Simplify right side
    13,979.18x = 201,926,587.57
  5. Step 5: Solve for x
    x = 201,926,587.57/13,979.18
  6. Step 6: Final answer
    x = 14,444.81

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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.