Home / 19,779.19-29,669.15-9,246.35

Finding the Fourth Proportional to 19,779.19, 29,669.15 and 9,246.35

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Solution

The fourth proportional to 19,779.19, 29,669.15 and 9,246.35 is: 13,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.19 : 29,669.15 = 9,246.35 : x
  2. Step 2: Convert to fraction form
    19,779.19/29,669.15 = 9,246.35/x
  3. Step 3: Cross multiply
    19,779.19x = 29,669.15 × 9,246.35
  4. Step 4: Simplify right side
    19,779.19x = 274,331,442.39
  5. Step 5: Solve for x
    x = 274,331,442.39/19,779.19
  6. Step 6: Final answer
    x = 13,869.70

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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.