Home / 9,938.48-13,721.56-6,165.68

Finding the Fourth Proportional to 9,938.48, 13,721.56 and 6,165.68

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Solution

The fourth proportional to 9,938.48, 13,721.56 and 6,165.68 is: 8,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.48 : 13,721.56 = 6,165.68 : x
  2. Step 2: Convert to fraction form
    9,938.48/13,721.56 = 6,165.68/x
  3. Step 3: Cross multiply
    9,938.48x = 13,721.56 × 6,165.68
  4. Step 4: Simplify right side
    9,938.48x = 84,602,748.06
  5. Step 5: Solve for x
    x = 84,602,748.06/9,938.48
  6. Step 6: Final answer
    x = 8,512.64

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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.