Home / 19,809.36-29,707.56-6,658.20

Finding the Fourth Proportional to 19,809.36, 29,707.56 and 6,658.20

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Solution

The fourth proportional to 19,809.36, 29,707.56 and 6,658.20 is: 9,985.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.36 : 29,707.56 = 6,658.20 : x
  2. Step 2: Convert to fraction form
    19,809.36/29,707.56 = 6,658.20/x
  3. Step 3: Cross multiply
    19,809.36x = 29,707.56 × 6,658.20
  4. Step 4: Simplify right side
    19,809.36x = 197,798,875.99
  5. Step 5: Solve for x
    x = 197,798,875.99/19,809.36
  6. Step 6: Final answer
    x = 9,985.12

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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.