Home / 15,120.74-22,681.62-5,260.12

Finding the Fourth Proportional to 15,120.74, 22,681.62 and 5,260.12

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Solution

The fourth proportional to 15,120.74, 22,681.62 and 5,260.12 is: 7,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120.74 : 22,681.62 = 5,260.12 : x
  2. Step 2: Convert to fraction form
    15,120.74/22,681.62 = 5,260.12/x
  3. Step 3: Cross multiply
    15,120.74x = 22,681.62 × 5,260.12
  4. Step 4: Simplify right side
    15,120.74x = 119,307,986.29
  5. Step 5: Solve for x
    x = 119,307,986.29/15,120.74
  6. Step 6: Final answer
    x = 7,890.35

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1.5x scale

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.