Home / 13,918.93-20,886.59-5,599.79

Finding the Fourth Proportional to 13,918.93, 20,886.59 and 5,599.79

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Solution

The fourth proportional to 13,918.93, 20,886.59 and 5,599.79 is: 8,402.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.93 : 20,886.59 = 5,599.79 : x
  2. Step 2: Convert to fraction form
    13,918.93/20,886.59 = 5,599.79/x
  3. Step 3: Cross multiply
    13,918.93x = 20,886.59 × 5,599.79
  4. Step 4: Simplify right side
    13,918.93x = 116,960,505.71
  5. Step 5: Solve for x
    x = 116,960,505.71/13,918.93
  6. Step 6: Final answer
    x = 8,402.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.