Home / 10,391.02-15,595.37-4,155.40

Finding the Fourth Proportional to 10,391.02, 15,595.37 and 4,155.40

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Solution

The fourth proportional to 10,391.02, 15,595.37 and 4,155.40 is: 6,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.02 : 15,595.37 = 4,155.40 : x
  2. Step 2: Convert to fraction form
    10,391.02/15,595.37 = 4,155.40/x
  3. Step 3: Cross multiply
    10,391.02x = 15,595.37 × 4,155.40
  4. Step 4: Simplify right side
    10,391.02x = 64,805,014.80
  5. Step 5: Solve for x
    x = 64,805,014.80/10,391.02
  6. Step 6: Final answer
    x = 6,236.64

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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.