Home / 13,554.47-20,362.86-9,615.51

Finding the Fourth Proportional to 13,554.47, 20,362.86 and 9,615.51

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Solution

The fourth proportional to 13,554.47, 20,362.86 and 9,615.51 is: 14,445.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.47 : 20,362.86 = 9,615.51 : x
  2. Step 2: Convert to fraction form
    13,554.47/20,362.86 = 9,615.51/x
  3. Step 3: Cross multiply
    13,554.47x = 20,362.86 × 9,615.51
  4. Step 4: Simplify right side
    13,554.47x = 195,799,283.96
  5. Step 5: Solve for x
    x = 195,799,283.96/13,554.47
  6. Step 6: Final answer
    x = 14,445.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.