Home / 9,720.07-13,410.35-5,470.27

Finding the Fourth Proportional to 9,720.07, 13,410.35 and 5,470.27

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Solution

The fourth proportional to 9,720.07, 13,410.35 and 5,470.27 is: 7,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.07 : 13,410.35 = 5,470.27 : x
  2. Step 2: Convert to fraction form
    9,720.07/13,410.35 = 5,470.27/x
  3. Step 3: Cross multiply
    9,720.07x = 13,410.35 × 5,470.27
  4. Step 4: Simplify right side
    9,720.07x = 73,358,207.94
  5. Step 5: Solve for x
    x = 73,358,207.94/9,720.07
  6. Step 6: Final answer
    x = 7,547.09

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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.