Home / 13,779.90-19,016.32-7,492.26

Finding the Fourth Proportional to 13,779.90, 19,016.32 and 7,492.26

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Solution

The fourth proportional to 13,779.90, 19,016.32 and 7,492.26 is: 10,339.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.90 : 19,016.32 = 7,492.26 : x
  2. Step 2: Convert to fraction form
    13,779.90/19,016.32 = 7,492.26/x
  3. Step 3: Cross multiply
    13,779.90x = 19,016.32 × 7,492.26
  4. Step 4: Simplify right side
    13,779.90x = 142,475,213.68
  5. Step 5: Solve for x
    x = 142,475,213.68/13,779.90
  6. Step 6: Final answer
    x = 10,339.35

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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.