Home / 15,476.83-21,358.08-8,403.24

Finding the Fourth Proportional to 15,476.83, 21,358.08 and 8,403.24

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Solution

The fourth proportional to 15,476.83, 21,358.08 and 8,403.24 is: 11,596.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.83 : 21,358.08 = 8,403.24 : x
  2. Step 2: Convert to fraction form
    15,476.83/21,358.08 = 8,403.24/x
  3. Step 3: Cross multiply
    15,476.83x = 21,358.08 × 8,403.24
  4. Step 4: Simplify right side
    15,476.83x = 179,477,072.18
  5. Step 5: Solve for x
    x = 179,477,072.18/15,476.83
  6. Step 6: Final answer
    x = 11,596.50

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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.