Home / 15,312.97-21,133.74-8,598.61

Finding the Fourth Proportional to 15,312.97, 21,133.74 and 8,598.61

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Solution

The fourth proportional to 15,312.97, 21,133.74 and 8,598.61 is: 11,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.97 : 21,133.74 = 8,598.61 : x
  2. Step 2: Convert to fraction form
    15,312.97/21,133.74 = 8,598.61/x
  3. Step 3: Cross multiply
    15,312.97x = 21,133.74 × 8,598.61
  4. Step 4: Simplify right side
    15,312.97x = 181,720,788.10
  5. Step 5: Solve for x
    x = 181,720,788.10/15,312.97
  6. Step 6: Final answer
    x = 11,867.12

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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.