Home / 19,389.12-29,088.48-6,242.96

Finding the Fourth Proportional to 19,389.12, 29,088.48 and 6,242.96

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Solution

The fourth proportional to 19,389.12, 29,088.48 and 6,242.96 is: 9,365.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.12 : 29,088.48 = 6,242.96 : x
  2. Step 2: Convert to fraction form
    19,389.12/29,088.48 = 6,242.96/x
  3. Step 3: Cross multiply
    19,389.12x = 29,088.48 × 6,242.96
  4. Step 4: Simplify right side
    19,389.12x = 181,598,217.10
  5. Step 5: Solve for x
    x = 181,598,217.10/19,389.12
  6. Step 6: Final answer
    x = 9,365.99

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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.