Home / 9,979.16-13,771.01-5,502.81

Finding the Fourth Proportional to 9,979.16, 13,771.01 and 5,502.81

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Solution

The fourth proportional to 9,979.16, 13,771.01 and 5,502.81 is: 7,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.16 : 13,771.01 = 5,502.81 : x
  2. Step 2: Convert to fraction form
    9,979.16/13,771.01 = 5,502.81/x
  3. Step 3: Cross multiply
    9,979.16x = 13,771.01 × 5,502.81
  4. Step 4: Simplify right side
    9,979.16x = 75,779,224.02
  5. Step 5: Solve for x
    x = 75,779,224.02/9,979.16
  6. Step 6: Final answer
    x = 7,593.75

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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.