Home / 13,317.23-18,377.15-7,647.98

Finding the Fourth Proportional to 13,317.23, 18,377.15 and 7,647.98

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Solution

The fourth proportional to 13,317.23, 18,377.15 and 7,647.98 is: 10,553.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.23 : 18,377.15 = 7,647.98 : x
  2. Step 2: Convert to fraction form
    13,317.23/18,377.15 = 7,647.98/x
  3. Step 3: Cross multiply
    13,317.23x = 18,377.15 × 7,647.98
  4. Step 4: Simplify right side
    13,317.23x = 140,547,945.53
  5. Step 5: Solve for x
    x = 140,547,945.53/13,317.23
  6. Step 6: Final answer
    x = 10,553.84

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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.