Home / 9,427.08-13,008.72-7,190.40

Finding the Fourth Proportional to 9,427.08, 13,008.72 and 7,190.40

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Solution

The fourth proportional to 9,427.08, 13,008.72 and 7,190.40 is: 9,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,427.08 : 13,008.72 = 7,190.40 : x
  2. Step 2: Convert to fraction form
    9,427.08/13,008.72 = 7,190.40/x
  3. Step 3: Cross multiply
    9,427.08x = 13,008.72 × 7,190.40
  4. Step 4: Simplify right side
    9,427.08x = 93,537,900.29
  5. Step 5: Solve for x
    x = 93,537,900.29/9,427.08
  6. Step 6: Final answer
    x = 9,922.26

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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.