Home / 12,036.90-18,088.56-10,513.38

Finding the Fourth Proportional to 12,036.90, 18,088.56 and 10,513.38

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Solution

The fourth proportional to 12,036.90, 18,088.56 and 10,513.38 is: 15,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,036.90 : 18,088.56 = 10,513.38 : x
  2. Step 2: Convert to fraction form
    12,036.90/18,088.56 = 10,513.38/x
  3. Step 3: Cross multiply
    12,036.90x = 18,088.56 × 10,513.38
  4. Step 4: Simplify right side
    12,036.90x = 190,171,904.93
  5. Step 5: Solve for x
    x = 190,171,904.93/12,036.90
  6. Step 6: Final answer
    x = 15,799.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.