Home / 15,047.52-20,772.37-9,677.76

Finding the Fourth Proportional to 15,047.52, 20,772.37 and 9,677.76

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Solution

The fourth proportional to 15,047.52, 20,772.37 and 9,677.76 is: 13,359.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047.52 : 20,772.37 = 9,677.76 : x
  2. Step 2: Convert to fraction form
    15,047.52/20,772.37 = 9,677.76/x
  3. Step 3: Cross multiply
    15,047.52x = 20,772.37 × 9,677.76
  4. Step 4: Simplify right side
    15,047.52x = 201,030,011.49
  5. Step 5: Solve for x
    x = 201,030,011.49/15,047.52
  6. Step 6: Final answer
    x = 13,359.68

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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.