Home / 15,700.26-21,667.75-8,984.55

Finding the Fourth Proportional to 15,700.26, 21,667.75 and 8,984.55

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Solution

The fourth proportional to 15,700.26, 21,667.75 and 8,984.55 is: 12,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.26 : 21,667.75 = 8,984.55 : x
  2. Step 2: Convert to fraction form
    15,700.26/21,667.75 = 8,984.55/x
  3. Step 3: Cross multiply
    15,700.26x = 21,667.75 × 8,984.55
  4. Step 4: Simplify right side
    15,700.26x = 194,674,983.26
  5. Step 5: Solve for x
    x = 194,674,983.26/15,700.26
  6. Step 6: Final answer
    x = 12,399.48

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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.