Home / 9,130.08-12,601.92-5,353.80

Finding the Fourth Proportional to 9,130.08, 12,601.92 and 5,353.80

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Solution

The fourth proportional to 9,130.08, 12,601.92 and 5,353.80 is: 7,389.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.08 : 12,601.92 = 5,353.80 : x
  2. Step 2: Convert to fraction form
    9,130.08/12,601.92 = 5,353.80/x
  3. Step 3: Cross multiply
    9,130.08x = 12,601.92 × 5,353.80
  4. Step 4: Simplify right side
    9,130.08x = 67,468,159.30
  5. Step 5: Solve for x
    x = 67,468,159.30/9,130.08
  6. Step 6: Final answer
    x = 7,389.66

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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.