Home / 13,471.02-18,590.40-7,806.69

Finding the Fourth Proportional to 13,471.02, 18,590.40 and 7,806.69

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Solution

The fourth proportional to 13,471.02, 18,590.40 and 7,806.69 is: 10,773.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.02 : 18,590.40 = 7,806.69 : x
  2. Step 2: Convert to fraction form
    13,471.02/18,590.40 = 7,806.69/x
  3. Step 3: Cross multiply
    13,471.02x = 18,590.40 × 7,806.69
  4. Step 4: Simplify right side
    13,471.02x = 145,129,489.78
  5. Step 5: Solve for x
    x = 145,129,489.78/13,471.02
  6. Step 6: Final answer
    x = 10,773.46

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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.