Home / 13,750.76-18,948.84-9,760.70

Finding the Fourth Proportional to 13,750.76, 18,948.84 and 9,760.70

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Solution

The fourth proportional to 13,750.76, 18,948.84 and 9,760.70 is: 13,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.76 : 18,948.84 = 9,760.70 : x
  2. Step 2: Convert to fraction form
    13,750.76/18,948.84 = 9,760.70/x
  3. Step 3: Cross multiply
    13,750.76x = 18,948.84 × 9,760.70
  4. Step 4: Simplify right side
    13,750.76x = 184,953,953.36
  5. Step 5: Solve for x
    x = 184,953,953.36/13,750.76
  6. Step 6: Final answer
    x = 13,450.45

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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.