Home / 19,779.19-29,669.15-9,246.32

Finding the Fourth Proportional to 19,779.19, 29,669.15 and 9,246.32

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Solution

The fourth proportional to 19,779.19, 29,669.15 and 9,246.32 is: 13,869.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.19 : 29,669.15 = 9,246.32 : x
  2. Step 2: Convert to fraction form
    19,779.19/29,669.15 = 9,246.32/x
  3. Step 3: Cross multiply
    19,779.19x = 29,669.15 × 9,246.32
  4. Step 4: Simplify right side
    19,779.19x = 274,330,441.06
  5. Step 5: Solve for x
    x = 274,330,441.06/19,779.19
  6. Step 6: Final answer
    x = 13,869.65

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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.