Home / 13,735.40-18,953.61-7,767.59

Finding the Fourth Proportional to 13,735.40, 18,953.61 and 7,767.59

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Solution

The fourth proportional to 13,735.40, 18,953.61 and 7,767.59 is: 10,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.40 : 18,953.61 = 7,767.59 : x
  2. Step 2: Convert to fraction form
    13,735.40/18,953.61 = 7,767.59/x
  3. Step 3: Cross multiply
    13,735.40x = 18,953.61 × 7,767.59
  4. Step 4: Simplify right side
    13,735.40x = 147,223,871.50
  5. Step 5: Solve for x
    x = 147,223,871.50/13,735.40
  6. Step 6: Final answer
    x = 10,718.57

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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.