Home / 15,395.69-21,244.43-8,682.35

Finding the Fourth Proportional to 15,395.69, 21,244.43 and 8,682.35

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Solution

The fourth proportional to 15,395.69, 21,244.43 and 8,682.35 is: 11,980.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395.69 : 21,244.43 = 8,682.35 : x
  2. Step 2: Convert to fraction form
    15,395.69/21,244.43 = 8,682.35/x
  3. Step 3: Cross multiply
    15,395.69x = 21,244.43 × 8,682.35
  4. Step 4: Simplify right side
    15,395.69x = 184,451,492.29
  5. Step 5: Solve for x
    x = 184,451,492.29/15,395.69
  6. Step 6: Final answer
    x = 11,980.72

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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.