Home / 14,779.40-22,115.10-10,891.40

Finding the Fourth Proportional to 14,779.40, 22,115.10 and 10,891.40

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Solution

The fourth proportional to 14,779.40, 22,115.10 and 10,891.40 is: 16,297.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.40 : 22,115.10 = 10,891.40 : x
  2. Step 2: Convert to fraction form
    14,779.40/22,115.10 = 10,891.40/x
  3. Step 3: Cross multiply
    14,779.40x = 22,115.10 × 10,891.40
  4. Step 4: Simplify right side
    14,779.40x = 240,864,400.14
  5. Step 5: Solve for x
    x = 240,864,400.14/14,779.40
  6. Step 6: Final answer
    x = 16,297.31

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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.