Home / 15,646.12-21,591.69-8,476.10

Finding the Fourth Proportional to 15,646.12, 21,591.69 and 8,476.10

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Solution

The fourth proportional to 15,646.12, 21,591.69 and 8,476.10 is: 11,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,646.12 : 21,591.69 = 8,476.10 : x
  2. Step 2: Convert to fraction form
    15,646.12/21,591.69 = 8,476.10/x
  3. Step 3: Cross multiply
    15,646.12x = 21,591.69 × 8,476.10
  4. Step 4: Simplify right side
    15,646.12x = 183,013,335.21
  5. Step 5: Solve for x
    x = 183,013,335.21/15,646.12
  6. Step 6: Final answer
    x = 11,697.05

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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.