Home / 13,366.10-18,447.16-7,699.74

Finding the Fourth Proportional to 13,366.10, 18,447.16 and 7,699.74

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Solution

The fourth proportional to 13,366.10, 18,447.16 and 7,699.74 is: 10,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.10 : 18,447.16 = 7,699.74 : x
  2. Step 2: Convert to fraction form
    13,366.10/18,447.16 = 7,699.74/x
  3. Step 3: Cross multiply
    13,366.10x = 18,447.16 × 7,699.74
  4. Step 4: Simplify right side
    13,366.10x = 142,038,335.74
  5. Step 5: Solve for x
    x = 142,038,335.74/13,366.10
  6. Step 6: Final answer
    x = 10,626.76

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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.