Home / 19,814.80-29,720.34-6,667.32

Finding the Fourth Proportional to 19,814.80, 29,720.34 and 6,667.32

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Solution

The fourth proportional to 19,814.80, 29,720.34 and 6,667.32 is: 10,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.80 : 29,720.34 = 6,667.32 : x
  2. Step 2: Convert to fraction form
    19,814.80/29,720.34 = 6,667.32/x
  3. Step 3: Cross multiply
    19,814.80x = 29,720.34 × 6,667.32
  4. Step 4: Simplify right side
    19,814.80x = 198,155,017.29
  5. Step 5: Solve for x
    x = 198,155,017.29/19,814.80
  6. Step 6: Final answer
    x = 10,000.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.