Home / 13,403.02-18,484.05-8,367.70

Finding the Fourth Proportional to 13,403.02, 18,484.05 and 8,367.70

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Solution

The fourth proportional to 13,403.02, 18,484.05 and 8,367.70 is: 11,539.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.02 : 18,484.05 = 8,367.70 : x
  2. Step 2: Convert to fraction form
    13,403.02/18,484.05 = 8,367.70/x
  3. Step 3: Cross multiply
    13,403.02x = 18,484.05 × 8,367.70
  4. Step 4: Simplify right side
    13,403.02x = 154,668,985.19
  5. Step 5: Solve for x
    x = 154,668,985.19/13,403.02
  6. Step 6: Final answer
    x = 11,539.86

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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.