Home / 13,549.09-18,695.96-7,580.11

Finding the Fourth Proportional to 13,549.09, 18,695.96 and 7,580.11

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Solution

The fourth proportional to 13,549.09, 18,695.96 and 7,580.11 is: 10,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.09 : 18,695.96 = 7,580.11 : x
  2. Step 2: Convert to fraction form
    13,549.09/18,695.96 = 7,580.11/x
  3. Step 3: Cross multiply
    13,549.09x = 18,695.96 × 7,580.11
  4. Step 4: Simplify right side
    13,549.09x = 141,717,395.46
  5. Step 5: Solve for x
    x = 141,717,395.46/13,549.09
  6. Step 6: Final answer
    x = 10,459.55

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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.