Home / 15,555.50-21,466.96-8,840.06

Finding the Fourth Proportional to 15,555.50, 21,466.96 and 8,840.06

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Solution

The fourth proportional to 15,555.50, 21,466.96 and 8,840.06 is: 12,199.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.50 : 21,466.96 = 8,840.06 : x
  2. Step 2: Convert to fraction form
    15,555.50/21,466.96 = 8,840.06/x
  3. Step 3: Cross multiply
    15,555.50x = 21,466.96 × 8,840.06
  4. Step 4: Simplify right side
    15,555.50x = 189,769,214.42
  5. Step 5: Solve for x
    x = 189,769,214.42/15,555.50
  6. Step 6: Final answer
    x = 12,199.49

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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.