Home / 14,189.48-19,439.68-13,657.42

Finding the Fourth Proportional to 14,189.48, 19,439.68 and 13,657.42

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Solution

The fourth proportional to 14,189.48, 19,439.68 and 13,657.42 is: 18,710.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.48 : 19,439.68 = 13,657.42 : x
  2. Step 2: Convert to fraction form
    14,189.48/19,439.68 = 13,657.42/x
  3. Step 3: Cross multiply
    14,189.48x = 19,439.68 × 13,657.42
  4. Step 4: Simplify right side
    14,189.48x = 265,495,835.52
  5. Step 5: Solve for x
    x = 265,495,835.52/14,189.48
  6. Step 6: Final answer
    x = 18,710.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.