Home / 13,428.98-18,526.03-8,948.36

Finding the Fourth Proportional to 13,428.98, 18,526.03 and 8,948.36

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Solution

The fourth proportional to 13,428.98, 18,526.03 and 8,948.36 is: 12,344.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428.98 : 18,526.03 = 8,948.36 : x
  2. Step 2: Convert to fraction form
    13,428.98/18,526.03 = 8,948.36/x
  3. Step 3: Cross multiply
    13,428.98x = 18,526.03 × 8,948.36
  4. Step 4: Simplify right side
    13,428.98x = 165,777,585.81
  5. Step 5: Solve for x
    x = 165,777,585.81/13,428.98
  6. Step 6: Final answer
    x = 12,344.76

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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.