Home / 13,113.02-18,096.35-7,447.95

Finding the Fourth Proportional to 13,113.02, 18,096.35 and 7,447.95

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Solution

The fourth proportional to 13,113.02, 18,096.35 and 7,447.95 is: 10,278.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.02 : 18,096.35 = 7,447.95 : x
  2. Step 2: Convert to fraction form
    13,113.02/18,096.35 = 7,447.95/x
  3. Step 3: Cross multiply
    13,113.02x = 18,096.35 × 7,447.95
  4. Step 4: Simplify right side
    13,113.02x = 134,780,672.74
  5. Step 5: Solve for x
    x = 134,780,672.74/13,113.02
  6. Step 6: Final answer
    x = 10,278.38

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Double scale
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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.