Home / 10,261.32-15,390.30-3,686.28

Finding the Fourth Proportional to 10,261.32, 15,390.30 and 3,686.28

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Solution

The fourth proportional to 10,261.32, 15,390.30 and 3,686.28 is: 5,528.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,261.32 : 15,390.30 = 3,686.28 : x
  2. Step 2: Convert to fraction form
    10,261.32/15,390.30 = 3,686.28/x
  3. Step 3: Cross multiply
    10,261.32x = 15,390.30 × 3,686.28
  4. Step 4: Simplify right side
    10,261.32x = 56,732,955.08
  5. Step 5: Solve for x
    x = 56,732,955.08/10,261.32
  6. Step 6: Final answer
    x = 5,528.82

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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.