Home / 13,549.34-18,696.30-7,580.36

Finding the Fourth Proportional to 13,549.34, 18,696.30 and 7,580.36

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Solution

The fourth proportional to 13,549.34, 18,696.30 and 7,580.36 is: 10,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.34 : 18,696.30 = 7,580.36 : x
  2. Step 2: Convert to fraction form
    13,549.34/18,696.30 = 7,580.36/x
  3. Step 3: Cross multiply
    13,549.34x = 18,696.30 × 7,580.36
  4. Step 4: Simplify right side
    13,549.34x = 141,724,684.67
  5. Step 5: Solve for x
    x = 141,724,684.67/13,549.34
  6. Step 6: Final answer
    x = 10,459.90

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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.