Home / 15,907.40-21,951.63-8,737.28

Finding the Fourth Proportional to 15,907.40, 21,951.63 and 8,737.28

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Solution

The fourth proportional to 15,907.40, 21,951.63 and 8,737.28 is: 12,057.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.40 : 21,951.63 = 8,737.28 : x
  2. Step 2: Convert to fraction form
    15,907.40/21,951.63 = 8,737.28/x
  3. Step 3: Cross multiply
    15,907.40x = 21,951.63 × 8,737.28
  4. Step 4: Simplify right side
    15,907.40x = 191,797,428.01
  5. Step 5: Solve for x
    x = 191,797,428.01/15,907.40
  6. Step 6: Final answer
    x = 12,057.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.