Home / 10,987.04-15,161.28-6,270.68

Finding the Fourth Proportional to 10,987.04, 15,161.28 and 6,270.68

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Solution

The fourth proportional to 10,987.04, 15,161.28 and 6,270.68 is: 8,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.04 : 15,161.28 = 6,270.68 : x
  2. Step 2: Convert to fraction form
    10,987.04/15,161.28 = 6,270.68/x
  3. Step 3: Cross multiply
    10,987.04x = 15,161.28 × 6,270.68
  4. Step 4: Simplify right side
    10,987.04x = 95,071,535.27
  5. Step 5: Solve for x
    x = 95,071,535.27/10,987.04
  6. Step 6: Final answer
    x = 8,653.06

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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.