Home / 15,787.11-23,680.73-9,929.19

Finding the Fourth Proportional to 15,787.11, 23,680.73 and 9,929.19

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Solution

The fourth proportional to 15,787.11, 23,680.73 and 9,929.19 is: 14,893.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.11 : 23,680.73 = 9,929.19 : x
  2. Step 2: Convert to fraction form
    15,787.11/23,680.73 = 9,929.19/x
  3. Step 3: Cross multiply
    15,787.11x = 23,680.73 × 9,929.19
  4. Step 4: Simplify right side
    15,787.11x = 235,130,417.86
  5. Step 5: Solve for x
    x = 235,130,417.86/15,787.11
  6. Step 6: Final answer
    x = 14,893.82

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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.