Home / 13,077.81-19,619.28-4,758.08

Finding the Fourth Proportional to 13,077.81, 19,619.28 and 4,758.08

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Solution

The fourth proportional to 13,077.81, 19,619.28 and 4,758.08 is: 7,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.81 : 19,619.28 = 4,758.08 : x
  2. Step 2: Convert to fraction form
    13,077.81/19,619.28 = 4,758.08/x
  3. Step 3: Cross multiply
    13,077.81x = 19,619.28 × 4,758.08
  4. Step 4: Simplify right side
    13,077.81x = 93,350,005.69
  5. Step 5: Solve for x
    x = 93,350,005.69/13,077.81
  6. Step 6: Final answer
    x = 7,138.05

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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.