Home / 15,559.48-21,471.90-8,485.96

Finding the Fourth Proportional to 15,559.48, 21,471.90 and 8,485.96

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Solution

The fourth proportional to 15,559.48, 21,471.90 and 8,485.96 is: 11,710.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559.48 : 21,471.90 = 8,485.96 : x
  2. Step 2: Convert to fraction form
    15,559.48/21,471.90 = 8,485.96/x
  3. Step 3: Cross multiply
    15,559.48x = 21,471.90 × 8,485.96
  4. Step 4: Simplify right side
    15,559.48x = 182,209,684.52
  5. Step 5: Solve for x
    x = 182,209,684.52/15,559.48
  6. Step 6: Final answer
    x = 11,710.53

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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.