Home / 13,555.40-20,335.95-4,671.54

Finding the Fourth Proportional to 13,555.40, 20,335.95 and 4,671.54

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Solution

The fourth proportional to 13,555.40, 20,335.95 and 4,671.54 is: 7,008.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.40 : 20,335.95 = 4,671.54 : x
  2. Step 2: Convert to fraction form
    13,555.40/20,335.95 = 4,671.54/x
  3. Step 3: Cross multiply
    13,555.40x = 20,335.95 × 4,671.54
  4. Step 4: Simplify right side
    13,555.40x = 95,000,203.86
  5. Step 5: Solve for x
    x = 95,000,203.86/13,555.40
  6. Step 6: Final answer
    x = 7,008.29

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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.