Home / 13,019.12-19,529.28-4,254.08

Finding the Fourth Proportional to 13,019.12, 19,529.28 and 4,254.08

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Solution

The fourth proportional to 13,019.12, 19,529.28 and 4,254.08 is: 6,381.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.12 : 19,529.28 = 4,254.08 : x
  2. Step 2: Convert to fraction form
    13,019.12/19,529.28 = 4,254.08/x
  3. Step 3: Cross multiply
    13,019.12x = 19,529.28 × 4,254.08
  4. Step 4: Simplify right side
    13,019.12x = 83,079,119.46
  5. Step 5: Solve for x
    x = 83,079,119.46/13,019.12
  6. Step 6: Final answer
    x = 6,381.32

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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.