Home / 9,389.29-12,956.77-5,140.28

Finding the Fourth Proportional to 9,389.29, 12,956.77 and 5,140.28

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Solution

The fourth proportional to 9,389.29, 12,956.77 and 5,140.28 is: 7,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.29 : 12,956.77 = 5,140.28 : x
  2. Step 2: Convert to fraction form
    9,389.29/12,956.77 = 5,140.28/x
  3. Step 3: Cross multiply
    9,389.29x = 12,956.77 × 5,140.28
  4. Step 4: Simplify right side
    9,389.29x = 66,601,412.84
  5. Step 5: Solve for x
    x = 66,601,412.84/9,389.29
  6. Step 6: Final answer
    x = 7,093.34

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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.