Home / 15,700.26-21,666.48-8,626.80

Finding the Fourth Proportional to 15,700.26, 21,666.48 and 8,626.80

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Solution

The fourth proportional to 15,700.26, 21,666.48 and 8,626.80 is: 11,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.26 : 21,666.48 = 8,626.80 : x
  2. Step 2: Convert to fraction form
    15,700.26/21,666.48 = 8,626.80/x
  3. Step 3: Cross multiply
    15,700.26x = 21,666.48 × 8,626.80
  4. Step 4: Simplify right side
    15,700.26x = 186,912,389.66
  5. Step 5: Solve for x
    x = 186,912,389.66/15,700.26
  6. Step 6: Final answer
    x = 11,905.05

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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.