Home / 9,429.90-13,013.52-6,079.20

Finding the Fourth Proportional to 9,429.90, 13,013.52 and 6,079.20

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Solution

The fourth proportional to 9,429.90, 13,013.52 and 6,079.20 is: 8,389.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.90 : 13,013.52 = 6,079.20 : x
  2. Step 2: Convert to fraction form
    9,429.90/13,013.52 = 6,079.20/x
  3. Step 3: Cross multiply
    9,429.90x = 13,013.52 × 6,079.20
  4. Step 4: Simplify right side
    9,429.90x = 79,111,790.78
  5. Step 5: Solve for x
    x = 79,111,790.78/9,429.90
  6. Step 6: Final answer
    x = 8,389.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.