Home / 13,430.72-20,116.64-9,523.28

Finding the Fourth Proportional to 13,430.72, 20,116.64 and 9,523.28

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Solution

The fourth proportional to 13,430.72, 20,116.64 and 9,523.28 is: 14,264.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.72 : 20,116.64 = 9,523.28 : x
  2. Step 2: Convert to fraction form
    13,430.72/20,116.64 = 9,523.28/x
  3. Step 3: Cross multiply
    13,430.72x = 20,116.64 × 9,523.28
  4. Step 4: Simplify right side
    13,430.72x = 191,576,395.38
  5. Step 5: Solve for x
    x = 191,576,395.38/13,430.72
  6. Step 6: Final answer
    x = 14,264.05

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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.