Home / 13,289.96-19,918.90-5,886.04

Finding the Fourth Proportional to 13,289.96, 19,918.90 and 5,886.04

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Solution

The fourth proportional to 13,289.96, 19,918.90 and 5,886.04 is: 8,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.96 : 19,918.90 = 5,886.04 : x
  2. Step 2: Convert to fraction form
    13,289.96/19,918.90 = 5,886.04/x
  3. Step 3: Cross multiply
    13,289.96x = 19,918.90 × 5,886.04
  4. Step 4: Simplify right side
    13,289.96x = 117,243,442.16
  5. Step 5: Solve for x
    x = 117,243,442.16/13,289.96
  6. Step 6: Final answer
    x = 8,821.96

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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.