Home / 13,830.02-19,085.40-7,542.44

Finding the Fourth Proportional to 13,830.02, 19,085.40 and 7,542.44

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Solution

The fourth proportional to 13,830.02, 19,085.40 and 7,542.44 is: 10,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.02 : 19,085.40 = 7,542.44 : x
  2. Step 2: Convert to fraction form
    13,830.02/19,085.40 = 7,542.44/x
  3. Step 3: Cross multiply
    13,830.02x = 19,085.40 × 7,542.44
  4. Step 4: Simplify right side
    13,830.02x = 143,950,484.38
  5. Step 5: Solve for x
    x = 143,950,484.38/13,830.02
  6. Step 6: Final answer
    x = 10,408.55

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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.