Home / 15,805.80-23,708.69-4,712.20

Finding the Fourth Proportional to 15,805.80, 23,708.69 and 4,712.20

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Solution

The fourth proportional to 15,805.80, 23,708.69 and 4,712.20 is: 7,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.80 : 23,708.69 = 4,712.20 : x
  2. Step 2: Convert to fraction form
    15,805.80/23,708.69 = 4,712.20/x
  3. Step 3: Cross multiply
    15,805.80x = 23,708.69 × 4,712.20
  4. Step 4: Simplify right side
    15,805.80x = 111,720,089.02
  5. Step 5: Solve for x
    x = 111,720,089.02/15,805.80
  6. Step 6: Final answer
    x = 7,068.30

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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.