Home / 13,417.02-18,520.70-10,069.54

Finding the Fourth Proportional to 13,417.02, 18,520.70 and 10,069.54

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Solution

The fourth proportional to 13,417.02, 18,520.70 and 10,069.54 is: 13,899.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.02 : 18,520.70 = 10,069.54 : x
  2. Step 2: Convert to fraction form
    13,417.02/18,520.70 = 10,069.54/x
  3. Step 3: Cross multiply
    13,417.02x = 18,520.70 × 10,069.54
  4. Step 4: Simplify right side
    13,417.02x = 186,494,832.83
  5. Step 5: Solve for x
    x = 186,494,832.83/13,417.02
  6. Step 6: Final answer
    x = 13,899.87

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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.