Home / 15,409.74-23,109.75-6,642.30

Finding the Fourth Proportional to 15,409.74, 23,109.75 and 6,642.30

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Solution

The fourth proportional to 15,409.74, 23,109.75 and 6,642.30 is: 9,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.74 : 23,109.75 = 6,642.30 : x
  2. Step 2: Convert to fraction form
    15,409.74/23,109.75 = 6,642.30/x
  3. Step 3: Cross multiply
    15,409.74x = 23,109.75 × 6,642.30
  4. Step 4: Simplify right side
    15,409.74x = 153,501,892.43
  5. Step 5: Solve for x
    x = 153,501,892.43/15,409.74
  6. Step 6: Final answer
    x = 9,961.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.