Home / 15,480.01-21,362.23-8,406.48

Finding the Fourth Proportional to 15,480.01, 21,362.23 and 8,406.48

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Solution

The fourth proportional to 15,480.01, 21,362.23 and 8,406.48 is: 11,600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.01 : 21,362.23 = 8,406.48 : x
  2. Step 2: Convert to fraction form
    15,480.01/21,362.23 = 8,406.48/x
  3. Step 3: Cross multiply
    15,480.01x = 21,362.23 × 8,406.48
  4. Step 4: Simplify right side
    15,480.01x = 179,581,159.25
  5. Step 5: Solve for x
    x = 179,581,159.25/15,480.01
  6. Step 6: Final answer
    x = 11,600.84

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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.