Home / 15,779.79-23,678.73-6,418.08

Finding the Fourth Proportional to 15,779.79, 23,678.73 and 6,418.08

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Solution

The fourth proportional to 15,779.79, 23,678.73 and 6,418.08 is: 9,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779.79 : 23,678.73 = 6,418.08 : x
  2. Step 2: Convert to fraction form
    15,779.79/23,678.73 = 6,418.08/x
  3. Step 3: Cross multiply
    15,779.79x = 23,678.73 × 6,418.08
  4. Step 4: Simplify right side
    15,779.79x = 151,971,983.44
  5. Step 5: Solve for x
    x = 151,971,983.44/15,779.79
  6. Step 6: Final answer
    x = 9,630.80

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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.