Home / 15,580.53-21,501.12-8,506.96

Finding the Fourth Proportional to 15,580.53, 21,501.12 and 8,506.96

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Solution

The fourth proportional to 15,580.53, 21,501.12 and 8,506.96 is: 11,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.53 : 21,501.12 = 8,506.96 : x
  2. Step 2: Convert to fraction form
    15,580.53/21,501.12 = 8,506.96/x
  3. Step 3: Cross multiply
    15,580.53x = 21,501.12 × 8,506.96
  4. Step 4: Simplify right side
    15,580.53x = 182,909,167.80
  5. Step 5: Solve for x
    x = 182,909,167.80/15,580.53
  6. Step 6: Final answer
    x = 11,739.60

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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.