Home / 10,487.36-15,717.20-5,555.67

Finding the Fourth Proportional to 10,487.36, 15,717.20 and 5,555.67

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Solution

The fourth proportional to 10,487.36, 15,717.20 and 5,555.67 is: 8,326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.36 : 15,717.20 = 5,555.67 : x
  2. Step 2: Convert to fraction form
    10,487.36/15,717.20 = 5,555.67/x
  3. Step 3: Cross multiply
    10,487.36x = 15,717.20 × 5,555.67
  4. Step 4: Simplify right side
    10,487.36x = 87,319,548.75
  5. Step 5: Solve for x
    x = 87,319,548.75/10,487.36
  6. Step 6: Final answer
    x = 8,326.17

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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.