Home / 11,035.47-15,214.32-9,140.07

Finding the Fourth Proportional to 11,035.47, 15,214.32 and 9,140.07

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Solution

The fourth proportional to 11,035.47, 15,214.32 and 9,140.07 is: 12,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,035.47 : 15,214.32 = 9,140.07 : x
  2. Step 2: Convert to fraction form
    11,035.47/15,214.32 = 9,140.07/x
  3. Step 3: Cross multiply
    11,035.47x = 15,214.32 × 9,140.07
  4. Step 4: Simplify right side
    11,035.47x = 139,059,949.80
  5. Step 5: Solve for x
    x = 139,059,949.80/11,035.47
  6. Step 6: Final answer
    x = 12,601.18

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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.