Home / 18,075.36-24,944.40-12,779.68

Finding the Fourth Proportional to 18,075.36, 24,944.40 and 12,779.68

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Solution

The fourth proportional to 18,075.36, 24,944.40 and 12,779.68 is: 17,636.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.36 : 24,944.40 = 12,779.68 : x
  2. Step 2: Convert to fraction form
    18,075.36/24,944.40 = 12,779.68/x
  3. Step 3: Cross multiply
    18,075.36x = 24,944.40 × 12,779.68
  4. Step 4: Simplify right side
    18,075.36x = 318,781,449.79
  5. Step 5: Solve for x
    x = 318,781,449.79/18,075.36
  6. Step 6: Final answer
    x = 17,636.24

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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.