Home / 10,282.40-15,342.82-9,655.46

Finding the Fourth Proportional to 10,282.40, 15,342.82 and 9,655.46

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Solution

The fourth proportional to 10,282.40, 15,342.82 and 9,655.46 is: 14,407.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282.40 : 15,342.82 = 9,655.46 : x
  2. Step 2: Convert to fraction form
    10,282.40/15,342.82 = 9,655.46/x
  3. Step 3: Cross multiply
    10,282.40x = 15,342.82 × 9,655.46
  4. Step 4: Simplify right side
    10,282.40x = 148,141,984.80
  5. Step 5: Solve for x
    x = 148,141,984.80/10,282.40
  6. Step 6: Final answer
    x = 14,407.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.