Home / 15,907.02-21,953.79-9,618.18

Finding the Fourth Proportional to 15,907.02, 21,953.79 and 9,618.18

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Solution

The fourth proportional to 15,907.02, 21,953.79 and 9,618.18 is: 13,274.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.02 : 21,953.79 = 9,618.18 : x
  2. Step 2: Convert to fraction form
    15,907.02/21,953.79 = 9,618.18/x
  3. Step 3: Cross multiply
    15,907.02x = 21,953.79 × 9,618.18
  4. Step 4: Simplify right side
    15,907.02x = 211,155,503.90
  5. Step 5: Solve for x
    x = 211,155,503.90/15,907.02
  6. Step 6: Final answer
    x = 13,274.36

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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.