Home / 12,420.07-18,638.30-5,848.13

Finding the Fourth Proportional to 12,420.07, 18,638.30 and 5,848.13

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Solution

The fourth proportional to 12,420.07, 18,638.30 and 5,848.13 is: 8,776.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420.07 : 18,638.30 = 5,848.13 : x
  2. Step 2: Convert to fraction form
    12,420.07/18,638.30 = 5,848.13/x
  3. Step 3: Cross multiply
    12,420.07x = 18,638.30 × 5,848.13
  4. Step 4: Simplify right side
    12,420.07x = 108,999,262.60
  5. Step 5: Solve for x
    x = 108,999,262.60/12,420.07
  6. Step 6: Final answer
    x = 8,776.06

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1.5x scale

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.