Home / 10,861.84-14,988.68-6,147.60

Finding the Fourth Proportional to 10,861.84, 14,988.68 and 6,147.60

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Solution

The fourth proportional to 10,861.84, 14,988.68 and 6,147.60 is: 8,483.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.84 : 14,988.68 = 6,147.60 : x
  2. Step 2: Convert to fraction form
    10,861.84/14,988.68 = 6,147.60/x
  3. Step 3: Cross multiply
    10,861.84x = 14,988.68 × 6,147.60
  4. Step 4: Simplify right side
    10,861.84x = 92,144,409.17
  5. Step 5: Solve for x
    x = 92,144,409.17/10,861.84
  6. Step 6: Final answer
    x = 8,483.31

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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.