Home / 13,920.23-20,875.16-5,597.45

Finding the Fourth Proportional to 13,920.23, 20,875.16 and 5,597.45

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Solution

The fourth proportional to 13,920.23, 20,875.16 and 5,597.45 is: 8,394.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.23 : 20,875.16 = 5,597.45 : x
  2. Step 2: Convert to fraction form
    13,920.23/20,875.16 = 5,597.45/x
  3. Step 3: Cross multiply
    13,920.23x = 20,875.16 × 5,597.45
  4. Step 4: Simplify right side
    13,920.23x = 116,847,573.96
  5. Step 5: Solve for x
    x = 116,847,573.96/13,920.23
  6. Step 6: Final answer
    x = 8,394.08

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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.