Home / 15,930.96-23,918.16-10,988.40

Finding the Fourth Proportional to 15,930.96, 23,918.16 and 10,988.40

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Solution

The fourth proportional to 15,930.96, 23,918.16 and 10,988.40 is: 16,497.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,930.96 : 23,918.16 = 10,988.40 : x
  2. Step 2: Convert to fraction form
    15,930.96/23,918.16 = 10,988.40/x
  3. Step 3: Cross multiply
    15,930.96x = 23,918.16 × 10,988.40
  4. Step 4: Simplify right side
    15,930.96x = 262,822,309.34
  5. Step 5: Solve for x
    x = 262,822,309.34/15,930.96
  6. Step 6: Final answer
    x = 16,497.58

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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.