Home / 11,283.28-15,570.82-6,315.28

Finding the Fourth Proportional to 11,283.28, 15,570.82 and 6,315.28

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Solution

The fourth proportional to 11,283.28, 15,570.82 and 6,315.28 is: 8,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,283.28 : 15,570.82 = 6,315.28 : x
  2. Step 2: Convert to fraction form
    11,283.28/15,570.82 = 6,315.28/x
  3. Step 3: Cross multiply
    11,283.28x = 15,570.82 × 6,315.28
  4. Step 4: Simplify right side
    11,283.28x = 98,334,088.13
  5. Step 5: Solve for x
    x = 98,334,088.13/11,283.28
  6. Step 6: Final answer
    x = 8,715.03

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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.