Home / 10,865.16-14,995.40-6,149.34

Finding the Fourth Proportional to 10,865.16, 14,995.40 and 6,149.34

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Solution

The fourth proportional to 10,865.16, 14,995.40 and 6,149.34 is: 8,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.16 : 14,995.40 = 6,149.34 : x
  2. Step 2: Convert to fraction form
    10,865.16/14,995.40 = 6,149.34/x
  3. Step 3: Cross multiply
    10,865.16x = 14,995.40 × 6,149.34
  4. Step 4: Simplify right side
    10,865.16x = 92,211,782.29
  5. Step 5: Solve for x
    x = 92,211,782.29/10,865.16
  6. Step 6: Final answer
    x = 8,486.92

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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.