Home / 13,280.02-19,865.31-10,913.38

Finding the Fourth Proportional to 13,280.02, 19,865.31 and 10,913.38

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Solution

The fourth proportional to 13,280.02, 19,865.31 and 10,913.38 is: 16,325.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.02 : 19,865.31 = 10,913.38 : x
  2. Step 2: Convert to fraction form
    13,280.02/19,865.31 = 10,913.38/x
  3. Step 3: Cross multiply
    13,280.02x = 19,865.31 × 10,913.38
  4. Step 4: Simplify right side
    13,280.02x = 216,797,676.85
  5. Step 5: Solve for x
    x = 216,797,676.85/13,280.02
  6. Step 6: Final answer
    x = 16,325.10

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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.