Home / 9,389.08-12,956.73-5,140.03

Finding the Fourth Proportional to 9,389.08, 12,956.73 and 5,140.03

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Solution

The fourth proportional to 9,389.08, 12,956.73 and 5,140.03 is: 7,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.08 : 12,956.73 = 5,140.03 : x
  2. Step 2: Convert to fraction form
    9,389.08/12,956.73 = 5,140.03/x
  3. Step 3: Cross multiply
    9,389.08x = 12,956.73 × 5,140.03
  4. Step 4: Simplify right side
    9,389.08x = 66,597,980.90
  5. Step 5: Solve for x
    x = 66,597,980.90/9,389.08
  6. Step 6: Final answer
    x = 7,093.13

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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.