Home / 15,274.04-21,078.02-8,559.95

Finding the Fourth Proportional to 15,274.04, 21,078.02 and 8,559.95

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Solution

The fourth proportional to 15,274.04, 21,078.02 and 8,559.95 is: 11,812.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,274.04 : 21,078.02 = 8,559.95 : x
  2. Step 2: Convert to fraction form
    15,274.04/21,078.02 = 8,559.95/x
  3. Step 3: Cross multiply
    15,274.04x = 21,078.02 × 8,559.95
  4. Step 4: Simplify right side
    15,274.04x = 180,426,713.31
  5. Step 5: Solve for x
    x = 180,426,713.31/15,274.04
  6. Step 6: Final answer
    x = 11,812.64

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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.