Home / 5,416.13-8,124.20-1,312.13

Finding the Fourth Proportional to 5,416.13, 8,124.20 and 1,312.13

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Solution

The fourth proportional to 5,416.13, 8,124.20 and 1,312.13 is: 1,968.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.13 : 8,124.20 = 1,312.13 : x
  2. Step 2: Convert to fraction form
    5,416.13/8,124.20 = 1,312.13/x
  3. Step 3: Cross multiply
    5,416.13x = 8,124.20 × 1,312.13
  4. Step 4: Simplify right side
    5,416.13x = 10,659,959.36
  5. Step 5: Solve for x
    x = 10,659,959.36/5,416.13
  6. Step 6: Final answer
    x = 1,968.19

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Double scale
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Similar ratio
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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.