Home / 13,430.30-20,134.40-5,928.53

Finding the Fourth Proportional to 13,430.30, 20,134.40 and 5,928.53

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Solution

The fourth proportional to 13,430.30, 20,134.40 and 5,928.53 is: 8,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.30 : 20,134.40 = 5,928.53 : x
  2. Step 2: Convert to fraction form
    13,430.30/20,134.40 = 5,928.53/x
  3. Step 3: Cross multiply
    13,430.30x = 20,134.40 × 5,928.53
  4. Step 4: Simplify right side
    13,430.30x = 119,367,364.79
  5. Step 5: Solve for x
    x = 119,367,364.79/13,430.30
  6. Step 6: Final answer
    x = 8,887.91

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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.