Home / 14,741.28-20,328.48-12,509.28

Finding the Fourth Proportional to 14,741.28, 20,328.48 and 12,509.28

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Solution

The fourth proportional to 14,741.28, 20,328.48 and 12,509.28 is: 17,250.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,741.28 : 20,328.48 = 12,509.28 : x
  2. Step 2: Convert to fraction form
    14,741.28/20,328.48 = 12,509.28/x
  3. Step 3: Cross multiply
    14,741.28x = 20,328.48 × 12,509.28
  4. Step 4: Simplify right side
    14,741.28x = 254,294,648.29
  5. Step 5: Solve for x
    x = 254,294,648.29/14,741.28
  6. Step 6: Final answer
    x = 17,250.51

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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.