Home / 17,868.12-24,649.92-11,155.40

Finding the Fourth Proportional to 17,868.12, 24,649.92 and 11,155.40

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Solution

The fourth proportional to 17,868.12, 24,649.92 and 11,155.40 is: 15,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,868.12 : 24,649.92 = 11,155.40 : x
  2. Step 2: Convert to fraction form
    17,868.12/24,649.92 = 11,155.40/x
  3. Step 3: Cross multiply
    17,868.12x = 24,649.92 × 11,155.40
  4. Step 4: Simplify right side
    17,868.12x = 274,979,779.19
  5. Step 5: Solve for x
    x = 274,979,779.19/17,868.12
  6. Step 6: Final answer
    x = 15,389.41

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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.