Home / 6,670.04-10,005.53-1,989.99

Finding the Fourth Proportional to 6,670.04, 10,005.53 and 1,989.99

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Solution

The fourth proportional to 6,670.04, 10,005.53 and 1,989.99 is: 2,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,670.04 : 10,005.53 = 1,989.99 : x
  2. Step 2: Convert to fraction form
    6,670.04/10,005.53 = 1,989.99/x
  3. Step 3: Cross multiply
    6,670.04x = 10,005.53 × 1,989.99
  4. Step 4: Simplify right side
    6,670.04x = 19,910,894.69
  5. Step 5: Solve for x
    x = 19,910,894.69/6,670.04
  6. Step 6: Final answer
    x = 2,985.13

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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.