Home / 13,315.74-18,377.19-7,651.50

Finding the Fourth Proportional to 13,315.74, 18,377.19 and 7,651.50

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Solution

The fourth proportional to 13,315.74, 18,377.19 and 7,651.50 is: 10,559.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.74 : 18,377.19 = 7,651.50 : x
  2. Step 2: Convert to fraction form
    13,315.74/18,377.19 = 7,651.50/x
  3. Step 3: Cross multiply
    13,315.74x = 18,377.19 × 7,651.50
  4. Step 4: Simplify right side
    13,315.74x = 140,613,069.29
  5. Step 5: Solve for x
    x = 140,613,069.29/13,315.74
  6. Step 6: Final answer
    x = 10,559.91

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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.