Home / 15,608.30-21,539.54-8,534.75

Finding the Fourth Proportional to 15,608.30, 21,539.54 and 8,534.75

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Solution

The fourth proportional to 15,608.30, 21,539.54 and 8,534.75 is: 11,778.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.30 : 21,539.54 = 8,534.75 : x
  2. Step 2: Convert to fraction form
    15,608.30/21,539.54 = 8,534.75/x
  3. Step 3: Cross multiply
    15,608.30x = 21,539.54 × 8,534.75
  4. Step 4: Simplify right side
    15,608.30x = 183,834,502.65
  5. Step 5: Solve for x
    x = 183,834,502.65/15,608.30
  6. Step 6: Final answer
    x = 11,778.00

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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.