Home / 15,779.08-21,774.36-9,490.24

Finding the Fourth Proportional to 15,779.08, 21,774.36 and 9,490.24

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Solution

The fourth proportional to 15,779.08, 21,774.36 and 9,490.24 is: 13,096.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779.08 : 21,774.36 = 9,490.24 : x
  2. Step 2: Convert to fraction form
    15,779.08/21,774.36 = 9,490.24/x
  3. Step 3: Cross multiply
    15,779.08x = 21,774.36 × 9,490.24
  4. Step 4: Simplify right side
    15,779.08x = 206,643,902.25
  5. Step 5: Solve for x
    x = 206,643,902.25/15,779.08
  6. Step 6: Final answer
    x = 13,096.07

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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.