Home / 10,359.12-15,523.56-5,157.84

Finding the Fourth Proportional to 10,359.12, 15,523.56 and 5,157.84

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Solution

The fourth proportional to 10,359.12, 15,523.56 and 5,157.84 is: 7,729.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.12 : 15,523.56 = 5,157.84 : x
  2. Step 2: Convert to fraction form
    10,359.12/15,523.56 = 5,157.84/x
  3. Step 3: Cross multiply
    10,359.12x = 15,523.56 × 5,157.84
  4. Step 4: Simplify right side
    10,359.12x = 80,068,038.71
  5. Step 5: Solve for x
    x = 80,068,038.71/10,359.12
  6. Step 6: Final answer
    x = 7,729.23

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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.