Home / 19,569.66-29,354.40-7,880.10

Finding the Fourth Proportional to 19,569.66, 29,354.40 and 7,880.10

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Solution

The fourth proportional to 19,569.66, 29,354.40 and 7,880.10 is: 11,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,569.66 : 29,354.40 = 7,880.10 : x
  2. Step 2: Convert to fraction form
    19,569.66/29,354.40 = 7,880.10/x
  3. Step 3: Cross multiply
    19,569.66x = 29,354.40 × 7,880.10
  4. Step 4: Simplify right side
    19,569.66x = 231,315,607.44
  5. Step 5: Solve for x
    x = 231,315,607.44/19,569.66
  6. Step 6: Final answer
    x = 11,820.11

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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.