Home / 9,670.57-13,352.93-7,428.90

Finding the Fourth Proportional to 9,670.57, 13,352.93 and 7,428.90

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Solution

The fourth proportional to 9,670.57, 13,352.93 and 7,428.90 is: 10,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,670.57 : 13,352.93 = 7,428.90 : x
  2. Step 2: Convert to fraction form
    9,670.57/13,352.93 = 7,428.90/x
  3. Step 3: Cross multiply
    9,670.57x = 13,352.93 × 7,428.90
  4. Step 4: Simplify right side
    9,670.57x = 99,197,581.68
  5. Step 5: Solve for x
    x = 99,197,581.68/9,670.57
  6. Step 6: Final answer
    x = 10,257.68

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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.