Home / 13,336.55-18,402.95-7,366.72

Finding the Fourth Proportional to 13,336.55, 18,402.95 and 7,366.72

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Solution

The fourth proportional to 13,336.55, 18,402.95 and 7,366.72 is: 10,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.55 : 18,402.95 = 7,366.72 : x
  2. Step 2: Convert to fraction form
    13,336.55/18,402.95 = 7,366.72/x
  3. Step 3: Cross multiply
    13,336.55x = 18,402.95 × 7,366.72
  4. Step 4: Simplify right side
    13,336.55x = 135,569,379.82
  5. Step 5: Solve for x
    x = 135,569,379.82/13,336.55
  6. Step 6: Final answer
    x = 10,165.25

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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.