Home / 10,861.30-14,986.59-6,385.24

Finding the Fourth Proportional to 10,861.30, 14,986.59 and 6,385.24

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Solution

The fourth proportional to 10,861.30, 14,986.59 and 6,385.24 is: 8,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.30 : 14,986.59 = 6,385.24 : x
  2. Step 2: Convert to fraction form
    10,861.30/14,986.59 = 6,385.24/x
  3. Step 3: Cross multiply
    10,861.30x = 14,986.59 × 6,385.24
  4. Step 4: Simplify right side
    10,861.30x = 95,692,973.93
  5. Step 5: Solve for x
    x = 95,692,973.93/10,861.30
  6. Step 6: Final answer
    x = 8,810.45

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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.