Home / 12,307.50-16,984.35-6,718.50

Finding the Fourth Proportional to 12,307.50, 16,984.35 and 6,718.50

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Solution

The fourth proportional to 12,307.50, 16,984.35 and 6,718.50 is: 9,271.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.50 : 16,984.35 = 6,718.50 : x
  2. Step 2: Convert to fraction form
    12,307.50/16,984.35 = 6,718.50/x
  3. Step 3: Cross multiply
    12,307.50x = 16,984.35 × 6,718.50
  4. Step 4: Simplify right side
    12,307.50x = 114,109,355.48
  5. Step 5: Solve for x
    x = 114,109,355.48/12,307.50
  6. Step 6: Final answer
    x = 9,271.53

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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.