Home / 15,730.40-23,599.25-5,199.78

Finding the Fourth Proportional to 15,730.40, 23,599.25 and 5,199.78

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Solution

The fourth proportional to 15,730.40, 23,599.25 and 5,199.78 is: 7,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,730.40 : 23,599.25 = 5,199.78 : x
  2. Step 2: Convert to fraction form
    15,730.40/23,599.25 = 5,199.78/x
  3. Step 3: Cross multiply
    15,730.40x = 23,599.25 × 5,199.78
  4. Step 4: Simplify right side
    15,730.40x = 122,710,923.79
  5. Step 5: Solve for x
    x = 122,710,923.79/15,730.40
  6. Step 6: Final answer
    x = 7,800.88

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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.