Home / 7,528.64-11,283.84-6,642.90

Finding the Fourth Proportional to 7,528.64, 11,283.84 and 6,642.90

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Solution

The fourth proportional to 7,528.64, 11,283.84 and 6,642.90 is: 9,956.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.64 : 11,283.84 = 6,642.90 : x
  2. Step 2: Convert to fraction form
    7,528.64/11,283.84 = 6,642.90/x
  3. Step 3: Cross multiply
    7,528.64x = 11,283.84 × 6,642.90
  4. Step 4: Simplify right side
    7,528.64x = 74,957,420.74
  5. Step 5: Solve for x
    x = 74,957,420.74/7,528.64
  6. Step 6: Final answer
    x = 9,956.31

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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.