Home / 7,988.56-11,023.72-4,631.08

Finding the Fourth Proportional to 7,988.56, 11,023.72 and 4,631.08

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Solution

The fourth proportional to 7,988.56, 11,023.72 and 4,631.08 is: 6,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.56 : 11,023.72 = 4,631.08 : x
  2. Step 2: Convert to fraction form
    7,988.56/11,023.72 = 4,631.08/x
  3. Step 3: Cross multiply
    7,988.56x = 11,023.72 × 4,631.08
  4. Step 4: Simplify right side
    7,988.56x = 51,051,729.22
  5. Step 5: Solve for x
    x = 51,051,729.22/7,988.56
  6. Step 6: Final answer
    x = 6,390.60

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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.