Home / 9,088.80-12,549.60-7,328.80

Finding the Fourth Proportional to 9,088.80, 12,549.60 and 7,328.80

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Solution

The fourth proportional to 9,088.80, 12,549.60 and 7,328.80 is: 10,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,088.80 : 12,549.60 = 7,328.80 : x
  2. Step 2: Convert to fraction form
    9,088.80/12,549.60 = 7,328.80/x
  3. Step 3: Cross multiply
    9,088.80x = 12,549.60 × 7,328.80
  4. Step 4: Simplify right side
    9,088.80x = 91,973,508.48
  5. Step 5: Solve for x
    x = 91,973,508.48/9,088.80
  6. Step 6: Final answer
    x = 10,119.43

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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.