Home / 13,977.32-19,292.80-8,316.04

Finding the Fourth Proportional to 13,977.32, 19,292.80 and 8,316.04

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Solution

The fourth proportional to 13,977.32, 19,292.80 and 8,316.04 is: 11,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.32 : 19,292.80 = 8,316.04 : x
  2. Step 2: Convert to fraction form
    13,977.32/19,292.80 = 8,316.04/x
  3. Step 3: Cross multiply
    13,977.32x = 19,292.80 × 8,316.04
  4. Step 4: Simplify right side
    13,977.32x = 160,439,696.51
  5. Step 5: Solve for x
    x = 160,439,696.51/13,977.32
  6. Step 6: Final answer
    x = 11,478.57

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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.