Home / 19,637.57-29,440.85-9,771.47

Finding the Fourth Proportional to 19,637.57, 29,440.85 and 9,771.47

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Solution

The fourth proportional to 19,637.57, 29,440.85 and 9,771.47 is: 14,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,637.57 : 29,440.85 = 9,771.47 : x
  2. Step 2: Convert to fraction form
    19,637.57/29,440.85 = 9,771.47/x
  3. Step 3: Cross multiply
    19,637.57x = 29,440.85 × 9,771.47
  4. Step 4: Simplify right side
    19,637.57x = 287,680,186.49
  5. Step 5: Solve for x
    x = 287,680,186.49/19,637.57
  6. Step 6: Final answer
    x = 14,649.48

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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.