Home / 13,587.84-20,381.76-4,360.32

Finding the Fourth Proportional to 13,587.84, 20,381.76 and 4,360.32

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Solution

The fourth proportional to 13,587.84, 20,381.76 and 4,360.32 is: 6,540.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.84 : 20,381.76 = 4,360.32 : x
  2. Step 2: Convert to fraction form
    13,587.84/20,381.76 = 4,360.32/x
  3. Step 3: Cross multiply
    13,587.84x = 20,381.76 × 4,360.32
  4. Step 4: Simplify right side
    13,587.84x = 88,870,995.76
  5. Step 5: Solve for x
    x = 88,870,995.76/13,587.84
  6. Step 6: Final answer
    x = 6,540.48

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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.