Home / 13,019.57-19,529.35-3,158.76

Finding the Fourth Proportional to 13,019.57, 19,529.35 and 3,158.76

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Solution

The fourth proportional to 13,019.57, 19,529.35 and 3,158.76 is: 4,738.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.57 : 19,529.35 = 3,158.76 : x
  2. Step 2: Convert to fraction form
    13,019.57/19,529.35 = 3,158.76/x
  3. Step 3: Cross multiply
    13,019.57x = 19,529.35 × 3,158.76
  4. Step 4: Simplify right side
    13,019.57x = 61,688,529.61
  5. Step 5: Solve for x
    x = 61,688,529.61/13,019.57
  6. Step 6: Final answer
    x = 4,738.14

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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.