Home / 13,263.96-18,298.13-7,949.55

Finding the Fourth Proportional to 13,263.96, 18,298.13 and 7,949.55

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Solution

The fourth proportional to 13,263.96, 18,298.13 and 7,949.55 is: 10,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.96 : 18,298.13 = 7,949.55 : x
  2. Step 2: Convert to fraction form
    13,263.96/18,298.13 = 7,949.55/x
  3. Step 3: Cross multiply
    13,263.96x = 18,298.13 × 7,949.55
  4. Step 4: Simplify right side
    13,263.96x = 145,461,899.34
  5. Step 5: Solve for x
    x = 145,461,899.34/13,263.96
  6. Step 6: Final answer
    x = 10,966.70

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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.