Home / 13,530.48-18,672.80-7,562.16

Finding the Fourth Proportional to 13,530.48, 18,672.80 and 7,562.16

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Solution

The fourth proportional to 13,530.48, 18,672.80 and 7,562.16 is: 10,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.48 : 18,672.80 = 7,562.16 : x
  2. Step 2: Convert to fraction form
    13,530.48/18,672.80 = 7,562.16/x
  3. Step 3: Cross multiply
    13,530.48x = 18,672.80 × 7,562.16
  4. Step 4: Simplify right side
    13,530.48x = 141,206,701.25
  5. Step 5: Solve for x
    x = 141,206,701.25/13,530.48
  6. Step 6: Final answer
    x = 10,436.19

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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.