Home / 19,483.75-26,890.21-10,987.62

Finding the Fourth Proportional to 19,483.75, 26,890.21 and 10,987.62

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Solution

The fourth proportional to 19,483.75, 26,890.21 and 10,987.62 is: 15,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483.75 : 26,890.21 = 10,987.62 : x
  2. Step 2: Convert to fraction form
    19,483.75/26,890.21 = 10,987.62/x
  3. Step 3: Cross multiply
    19,483.75x = 26,890.21 × 10,987.62
  4. Step 4: Simplify right side
    19,483.75x = 295,459,409.20
  5. Step 5: Solve for x
    x = 295,459,409.20/19,483.75
  6. Step 6: Final answer
    x = 15,164.40

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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.