Home / 13,779.81-19,016.28-7,492.32

Finding the Fourth Proportional to 13,779.81, 19,016.28 and 7,492.32

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Solution

The fourth proportional to 13,779.81, 19,016.28 and 7,492.32 is: 10,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.81 : 19,016.28 = 7,492.32 : x
  2. Step 2: Convert to fraction form
    13,779.81/19,016.28 = 7,492.32/x
  3. Step 3: Cross multiply
    13,779.81x = 19,016.28 × 7,492.32
  4. Step 4: Simplify right side
    13,779.81x = 142,476,054.97
  5. Step 5: Solve for x
    x = 142,476,054.97/13,779.81
  6. Step 6: Final answer
    x = 10,339.48

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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.