Home / 10,239.78-14,130.54-6,261.06

Finding the Fourth Proportional to 10,239.78, 14,130.54 and 6,261.06

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Solution

The fourth proportional to 10,239.78, 14,130.54 and 6,261.06 is: 8,640.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.78 : 14,130.54 = 6,261.06 : x
  2. Step 2: Convert to fraction form
    10,239.78/14,130.54 = 6,261.06/x
  3. Step 3: Cross multiply
    10,239.78x = 14,130.54 × 6,261.06
  4. Step 4: Simplify right side
    10,239.78x = 88,472,158.77
  5. Step 5: Solve for x
    x = 88,472,158.77/10,239.78
  6. Step 6: Final answer
    x = 8,640.04

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Half scale
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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.