Home / 13,574.53-18,720.88-9,796.69

Finding the Fourth Proportional to 13,574.53, 18,720.88 and 9,796.69

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Solution

The fourth proportional to 13,574.53, 18,720.88 and 9,796.69 is: 13,510.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.53 : 18,720.88 = 9,796.69 : x
  2. Step 2: Convert to fraction form
    13,574.53/18,720.88 = 9,796.69/x
  3. Step 3: Cross multiply
    13,574.53x = 18,720.88 × 9,796.69
  4. Step 4: Simplify right side
    13,574.53x = 183,402,657.89
  5. Step 5: Solve for x
    x = 183,402,657.89/13,574.53
  6. Step 6: Final answer
    x = 13,510.79

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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.