Home / 12,439.10-17,181.36-9,030.67

Finding the Fourth Proportional to 12,439.10, 17,181.36 and 9,030.67

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Solution

The fourth proportional to 12,439.10, 17,181.36 and 9,030.67 is: 12,473.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.10 : 17,181.36 = 9,030.67 : x
  2. Step 2: Convert to fraction form
    12,439.10/17,181.36 = 9,030.67/x
  3. Step 3: Cross multiply
    12,439.10x = 17,181.36 × 9,030.67
  4. Step 4: Simplify right side
    12,439.10x = 155,159,192.31
  5. Step 5: Solve for x
    x = 155,159,192.31/12,439.10
  6. Step 6: Final answer
    x = 12,473.51

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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.