Home / 11,031.74-15,223.53-6,315.62

Finding the Fourth Proportional to 11,031.74, 15,223.53 and 6,315.62

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Solution

The fourth proportional to 11,031.74, 15,223.53 and 6,315.62 is: 8,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.74 : 15,223.53 = 6,315.62 : x
  2. Step 2: Convert to fraction form
    11,031.74/15,223.53 = 6,315.62/x
  3. Step 3: Cross multiply
    11,031.74x = 15,223.53 × 6,315.62
  4. Step 4: Simplify right side
    11,031.74x = 96,146,030.54
  5. Step 5: Solve for x
    x = 96,146,030.54/11,031.74
  6. Step 6: Final answer
    x = 8,715.40

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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.