Home / 13,432.21-20,148.38-4,547.62

Finding the Fourth Proportional to 13,432.21, 20,148.38 and 4,547.62

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Solution

The fourth proportional to 13,432.21, 20,148.38 and 4,547.62 is: 6,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.21 : 20,148.38 = 4,547.62 : x
  2. Step 2: Convert to fraction form
    13,432.21/20,148.38 = 4,547.62/x
  3. Step 3: Cross multiply
    13,432.21x = 20,148.38 × 4,547.62
  4. Step 4: Simplify right side
    13,432.21x = 91,627,175.86
  5. Step 5: Solve for x
    x = 91,627,175.86/13,432.21
  6. Step 6: Final answer
    x = 6,821.45

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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.