Home / 12,307.70-16,984.86-7,002.56

Finding the Fourth Proportional to 12,307.70, 16,984.86 and 7,002.56

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Solution

The fourth proportional to 12,307.70, 16,984.86 and 7,002.56 is: 9,663.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.70 : 16,984.86 = 7,002.56 : x
  2. Step 2: Convert to fraction form
    12,307.70/16,984.86 = 7,002.56/x
  3. Step 3: Cross multiply
    12,307.70x = 16,984.86 × 7,002.56
  4. Step 4: Simplify right side
    12,307.70x = 118,937,501.24
  5. Step 5: Solve for x
    x = 118,937,501.24/12,307.70
  6. Step 6: Final answer
    x = 9,663.67

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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.