Home / 10,385.64-15,586.83-5,458.23

Finding the Fourth Proportional to 10,385.64, 15,586.83 and 5,458.23

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Solution

The fourth proportional to 10,385.64, 15,586.83 and 5,458.23 is: 8,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.64 : 15,586.83 = 5,458.23 : x
  2. Step 2: Convert to fraction form
    10,385.64/15,586.83 = 5,458.23/x
  3. Step 3: Cross multiply
    10,385.64x = 15,586.83 × 5,458.23
  4. Step 4: Simplify right side
    10,385.64x = 85,076,503.11
  5. Step 5: Solve for x
    x = 85,076,503.11/10,385.64
  6. Step 6: Final answer
    x = 8,191.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.