Home / 13,451.95-20,140.98-10,155.07

Finding the Fourth Proportional to 13,451.95, 20,140.98 and 10,155.07

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Solution

The fourth proportional to 13,451.95, 20,140.98 and 10,155.07 is: 15,204.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.95 : 20,140.98 = 10,155.07 : x
  2. Step 2: Convert to fraction form
    13,451.95/20,140.98 = 10,155.07/x
  3. Step 3: Cross multiply
    13,451.95x = 20,140.98 × 10,155.07
  4. Step 4: Simplify right side
    13,451.95x = 204,533,061.77
  5. Step 5: Solve for x
    x = 204,533,061.77/13,451.95
  6. Step 6: Final answer
    x = 15,204.71

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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.