Home / 12,386.61-18,533.34-7,370.53

Finding the Fourth Proportional to 12,386.61, 18,533.34 and 7,370.53

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Solution

The fourth proportional to 12,386.61, 18,533.34 and 7,370.53 is: 11,028.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.61 : 18,533.34 = 7,370.53 : x
  2. Step 2: Convert to fraction form
    12,386.61/18,533.34 = 7,370.53/x
  3. Step 3: Cross multiply
    12,386.61x = 18,533.34 × 7,370.53
  4. Step 4: Simplify right side
    12,386.61x = 136,600,492.14
  5. Step 5: Solve for x
    x = 136,600,492.14/12,386.61
  6. Step 6: Final answer
    x = 11,028.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.