Home / 19,575.40-29,363.12-9,187.16

Finding the Fourth Proportional to 19,575.40, 29,363.12 and 9,187.16

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Solution

The fourth proportional to 19,575.40, 29,363.12 and 9,187.16 is: 13,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,575.40 : 29,363.12 = 9,187.16 : x
  2. Step 2: Convert to fraction form
    19,575.40/29,363.12 = 9,187.16/x
  3. Step 3: Cross multiply
    19,575.40x = 29,363.12 × 9,187.16
  4. Step 4: Simplify right side
    19,575.40x = 269,763,681.54
  5. Step 5: Solve for x
    x = 269,763,681.54/19,575.40
  6. Step 6: Final answer
    x = 13,780.75

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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.