Home / 13,886.26-19,158.29-7,913.62

Finding the Fourth Proportional to 13,886.26, 19,158.29 and 7,913.62

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Solution

The fourth proportional to 13,886.26, 19,158.29 and 7,913.62 is: 10,918.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.26 : 19,158.29 = 7,913.62 : x
  2. Step 2: Convert to fraction form
    13,886.26/19,158.29 = 7,913.62/x
  3. Step 3: Cross multiply
    13,886.26x = 19,158.29 × 7,913.62
  4. Step 4: Simplify right side
    13,886.26x = 151,611,426.91
  5. Step 5: Solve for x
    x = 151,611,426.91/13,886.26
  6. Step 6: Final answer
    x = 10,918.09

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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.