Home / 14,403.13-19,876.32-7,779.13

Finding the Fourth Proportional to 14,403.13, 19,876.32 and 7,779.13

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Solution

The fourth proportional to 14,403.13, 19,876.32 and 7,779.13 is: 10,735.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.13 : 19,876.32 = 7,779.13 : x
  2. Step 2: Convert to fraction form
    14,403.13/19,876.32 = 7,779.13/x
  3. Step 3: Cross multiply
    14,403.13x = 19,876.32 × 7,779.13
  4. Step 4: Simplify right side
    14,403.13x = 154,620,477.20
  5. Step 5: Solve for x
    x = 154,620,477.20/14,403.13
  6. Step 6: Final answer
    x = 10,735.20

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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.