Home / 15,877.32-21,904.56-10,211.32

Finding the Fourth Proportional to 15,877.32, 21,904.56 and 10,211.32

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Solution

The fourth proportional to 15,877.32, 21,904.56 and 10,211.32 is: 14,087.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.32 : 21,904.56 = 10,211.32 : x
  2. Step 2: Convert to fraction form
    15,877.32/21,904.56 = 10,211.32/x
  3. Step 3: Cross multiply
    15,877.32x = 21,904.56 × 10,211.32
  4. Step 4: Simplify right side
    15,877.32x = 223,674,471.62
  5. Step 5: Solve for x
    x = 223,674,471.62/15,877.32
  6. Step 6: Final answer
    x = 14,087.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.