Home / 10,133.48-15,204.78-6,434.72

Finding the Fourth Proportional to 10,133.48, 15,204.78 and 6,434.72

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Solution

The fourth proportional to 10,133.48, 15,204.78 and 6,434.72 is: 9,654.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.48 : 15,204.78 = 6,434.72 : x
  2. Step 2: Convert to fraction form
    10,133.48/15,204.78 = 6,434.72/x
  3. Step 3: Cross multiply
    10,133.48x = 15,204.78 × 6,434.72
  4. Step 4: Simplify right side
    10,133.48x = 97,838,501.96
  5. Step 5: Solve for x
    x = 97,838,501.96/10,133.48
  6. Step 6: Final answer
    x = 9,654.98

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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.