Home / 19,312.72-26,640.42-11,353.48

Finding the Fourth Proportional to 19,312.72, 26,640.42 and 11,353.48

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Solution

The fourth proportional to 19,312.72, 26,640.42 and 11,353.48 is: 15,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.72 : 26,640.42 = 11,353.48 : x
  2. Step 2: Convert to fraction form
    19,312.72/26,640.42 = 11,353.48/x
  3. Step 3: Cross multiply
    19,312.72x = 26,640.42 × 11,353.48
  4. Step 4: Simplify right side
    19,312.72x = 302,461,475.66
  5. Step 5: Solve for x
    x = 302,461,475.66/19,312.72
  6. Step 6: Final answer
    x = 15,661.26

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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.