Home / 15,970.77-22,039.70-8,897.45

Finding the Fourth Proportional to 15,970.77, 22,039.70 and 8,897.45

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Solution

The fourth proportional to 15,970.77, 22,039.70 and 8,897.45 is: 12,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,970.77 : 22,039.70 = 8,897.45 : x
  2. Step 2: Convert to fraction form
    15,970.77/22,039.70 = 8,897.45/x
  3. Step 3: Cross multiply
    15,970.77x = 22,039.70 × 8,897.45
  4. Step 4: Simplify right side
    15,970.77x = 196,096,974.08
  5. Step 5: Solve for x
    x = 196,096,974.08/15,970.77
  6. Step 6: Final answer
    x = 12,278.49

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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.