Home / 15,856.45-23,785.67-5,325.64

Finding the Fourth Proportional to 15,856.45, 23,785.67 and 5,325.64

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Solution

The fourth proportional to 15,856.45, 23,785.67 and 5,325.64 is: 7,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856.45 : 23,785.67 = 5,325.64 : x
  2. Step 2: Convert to fraction form
    15,856.45/23,785.67 = 5,325.64/x
  3. Step 3: Cross multiply
    15,856.45x = 23,785.67 × 5,325.64
  4. Step 4: Simplify right side
    15,856.45x = 126,673,915.58
  5. Step 5: Solve for x
    x = 126,673,915.58/15,856.45
  6. Step 6: Final answer
    x = 7,988.79

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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.