Home / 10,241.61-15,282.54-9,138.39

Finding the Fourth Proportional to 10,241.61, 15,282.54 and 9,138.39

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Solution

The fourth proportional to 10,241.61, 15,282.54 and 9,138.39 is: 13,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,241.61 : 15,282.54 = 9,138.39 : x
  2. Step 2: Convert to fraction form
    10,241.61/15,282.54 = 9,138.39/x
  3. Step 3: Cross multiply
    10,241.61x = 15,282.54 × 9,138.39
  4. Step 4: Simplify right side
    10,241.61x = 139,657,810.71
  5. Step 5: Solve for x
    x = 139,657,810.71/10,241.61
  6. Step 6: Final answer
    x = 13,636.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.