Home / 9,784.40-13,502.43-5,308.07

Finding the Fourth Proportional to 9,784.40, 13,502.43 and 5,308.07

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Solution

The fourth proportional to 9,784.40, 13,502.43 and 5,308.07 is: 7,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,784.40 : 13,502.43 = 5,308.07 : x
  2. Step 2: Convert to fraction form
    9,784.40/13,502.43 = 5,308.07/x
  3. Step 3: Cross multiply
    9,784.40x = 13,502.43 × 5,308.07
  4. Step 4: Simplify right side
    9,784.40x = 71,671,776.10
  5. Step 5: Solve for x
    x = 71,671,776.10/9,784.40
  6. Step 6: Final answer
    x = 7,325.11

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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.