Home / 13,874.08-19,140.86-8,837.40

Finding the Fourth Proportional to 13,874.08, 19,140.86 and 8,837.40

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Solution

The fourth proportional to 13,874.08, 19,140.86 and 8,837.40 is: 12,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.08 : 19,140.86 = 8,837.40 : x
  2. Step 2: Convert to fraction form
    13,874.08/19,140.86 = 8,837.40/x
  3. Step 3: Cross multiply
    13,874.08x = 19,140.86 × 8,837.40
  4. Step 4: Simplify right side
    13,874.08x = 169,155,436.16
  5. Step 5: Solve for x
    x = 169,155,436.16/13,874.08
  6. Step 6: Final answer
    x = 12,192.19

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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.