Home / 13,562.57-18,697.07-9,971.18

Finding the Fourth Proportional to 13,562.57, 18,697.07 and 9,971.18

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Solution

The fourth proportional to 13,562.57, 18,697.07 and 9,971.18 is: 13,746.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.57 : 18,697.07 = 9,971.18 : x
  2. Step 2: Convert to fraction form
    13,562.57/18,697.07 = 9,971.18/x
  3. Step 3: Cross multiply
    13,562.57x = 18,697.07 × 9,971.18
  4. Step 4: Simplify right side
    13,562.57x = 186,431,922.11
  5. Step 5: Solve for x
    x = 186,431,922.11/13,562.57
  6. Step 6: Final answer
    x = 13,746.07

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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.