Home / 10,386.30-15,576.57-2,988.75

Finding the Fourth Proportional to 10,386.30, 15,576.57 and 2,988.75

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Solution

The fourth proportional to 10,386.30, 15,576.57 and 2,988.75 is: 4,482.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.30 : 15,576.57 = 2,988.75 : x
  2. Step 2: Convert to fraction form
    10,386.30/15,576.57 = 2,988.75/x
  3. Step 3: Cross multiply
    10,386.30x = 15,576.57 × 2,988.75
  4. Step 4: Simplify right side
    10,386.30x = 46,554,473.59
  5. Step 5: Solve for x
    x = 46,554,473.59/10,386.30
  6. Step 6: Final answer
    x = 4,482.30

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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.