Home / 8,088.64-11,154.72-7,485.28

Finding the Fourth Proportional to 8,088.64, 11,154.72 and 7,485.28

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Solution

The fourth proportional to 8,088.64, 11,154.72 and 7,485.28 is: 10,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.64 : 11,154.72 = 7,485.28 : x
  2. Step 2: Convert to fraction form
    8,088.64/11,154.72 = 7,485.28/x
  3. Step 3: Cross multiply
    8,088.64x = 11,154.72 × 7,485.28
  4. Step 4: Simplify right side
    8,088.64x = 83,496,202.52
  5. Step 5: Solve for x
    x = 83,496,202.52/8,088.64
  6. Step 6: Final answer
    x = 10,322.65

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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.