Home / 13,387.95-20,084.15-4,620.51

Finding the Fourth Proportional to 13,387.95, 20,084.15 and 4,620.51

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Solution

The fourth proportional to 13,387.95, 20,084.15 and 4,620.51 is: 6,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.95 : 20,084.15 = 4,620.51 : x
  2. Step 2: Convert to fraction form
    13,387.95/20,084.15 = 4,620.51/x
  3. Step 3: Cross multiply
    13,387.95x = 20,084.15 × 4,620.51
  4. Step 4: Simplify right side
    13,387.95x = 92,799,027.47
  5. Step 5: Solve for x
    x = 92,799,027.47/13,387.95
  6. Step 6: Final answer
    x = 6,931.53

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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.