Home / 15,981.49-22,053.63-8,907.76

Finding the Fourth Proportional to 15,981.49, 22,053.63 and 8,907.76

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Solution

The fourth proportional to 15,981.49, 22,053.63 and 8,907.76 is: 12,292.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.49 : 22,053.63 = 8,907.76 : x
  2. Step 2: Convert to fraction form
    15,981.49/22,053.63 = 8,907.76/x
  3. Step 3: Cross multiply
    15,981.49x = 22,053.63 × 8,907.76
  4. Step 4: Simplify right side
    15,981.49x = 196,448,443.17
  5. Step 5: Solve for x
    x = 196,448,443.17/15,981.49
  6. Step 6: Final answer
    x = 12,292.25

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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.