Home / 15,720.09-23,582.48-5,191.22

Finding the Fourth Proportional to 15,720.09, 23,582.48 and 5,191.22

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Solution

The fourth proportional to 15,720.09, 23,582.48 and 5,191.22 is: 7,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.09 : 23,582.48 = 5,191.22 : x
  2. Step 2: Convert to fraction form
    15,720.09/23,582.48 = 5,191.22/x
  3. Step 3: Cross multiply
    15,720.09x = 23,582.48 × 5,191.22
  4. Step 4: Simplify right side
    15,720.09x = 122,421,841.83
  5. Step 5: Solve for x
    x = 122,421,841.83/15,720.09
  6. Step 6: Final answer
    x = 7,787.60

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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.