Home / 10,861.16-14,986.50-6,670.76

Finding the Fourth Proportional to 10,861.16, 14,986.50 and 6,670.76

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Solution

The fourth proportional to 10,861.16, 14,986.50 and 6,670.76 is: 9,204.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.16 : 14,986.50 = 6,670.76 : x
  2. Step 2: Convert to fraction form
    10,861.16/14,986.50 = 6,670.76/x
  3. Step 3: Cross multiply
    10,861.16x = 14,986.50 × 6,670.76
  4. Step 4: Simplify right side
    10,861.16x = 99,971,344.74
  5. Step 5: Solve for x
    x = 99,971,344.74/10,861.16
  6. Step 6: Final answer
    x = 9,204.48

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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.