Home / 15,990.74-23,988.29-5,457.93

Finding the Fourth Proportional to 15,990.74, 23,988.29 and 5,457.93

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Solution

The fourth proportional to 15,990.74, 23,988.29 and 5,457.93 is: 8,187.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.74 : 23,988.29 = 5,457.93 : x
  2. Step 2: Convert to fraction form
    15,990.74/23,988.29 = 5,457.93/x
  3. Step 3: Cross multiply
    15,990.74x = 23,988.29 × 5,457.93
  4. Step 4: Simplify right side
    15,990.74x = 130,926,407.64
  5. Step 5: Solve for x
    x = 130,926,407.64/15,990.74
  6. Step 6: Final answer
    x = 8,187.64

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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.