Home / 13,306.18-18,362.11-7,338.10

Finding the Fourth Proportional to 13,306.18, 18,362.11 and 7,338.10

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Solution

The fourth proportional to 13,306.18, 18,362.11 and 7,338.10 is: 10,126.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.18 : 18,362.11 = 7,338.10 : x
  2. Step 2: Convert to fraction form
    13,306.18/18,362.11 = 7,338.10/x
  3. Step 3: Cross multiply
    13,306.18x = 18,362.11 × 7,338.10
  4. Step 4: Simplify right side
    13,306.18x = 134,742,999.39
  5. Step 5: Solve for x
    x = 134,742,999.39/13,306.18
  6. Step 6: Final answer
    x = 10,126.35

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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.