Home / 15,887.10-21,874.35-13,492.08

Finding the Fourth Proportional to 15,887.10, 21,874.35 and 13,492.08

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Solution

The fourth proportional to 15,887.10, 21,874.35 and 13,492.08 is: 18,576.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.10 : 21,874.35 = 13,492.08 : x
  2. Step 2: Convert to fraction form
    15,887.10/21,874.35 = 13,492.08/x
  3. Step 3: Cross multiply
    15,887.10x = 21,874.35 × 13,492.08
  4. Step 4: Simplify right side
    15,887.10x = 295,130,480.15
  5. Step 5: Solve for x
    x = 295,130,480.15/15,887.10
  6. Step 6: Final answer
    x = 18,576.74

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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.