Home / 12,307.68-16,984.80-7,002.56

Finding the Fourth Proportional to 12,307.68, 16,984.80 and 7,002.56

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Solution

The fourth proportional to 12,307.68, 16,984.80 and 7,002.56 is: 9,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.68 : 16,984.80 = 7,002.56 : x
  2. Step 2: Convert to fraction form
    12,307.68/16,984.80 = 7,002.56/x
  3. Step 3: Cross multiply
    12,307.68x = 16,984.80 × 7,002.56
  4. Step 4: Simplify right side
    12,307.68x = 118,937,081.09
  5. Step 5: Solve for x
    x = 118,937,081.09/12,307.68
  6. Step 6: Final answer
    x = 9,663.65

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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.