Home / 15,670.63-21,625.81-8,597.05

Finding the Fourth Proportional to 15,670.63, 21,625.81 and 8,597.05

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Solution

The fourth proportional to 15,670.63, 21,625.81 and 8,597.05 is: 11,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,670.63 : 21,625.81 = 8,597.05 : x
  2. Step 2: Convert to fraction form
    15,670.63/21,625.81 = 8,597.05/x
  3. Step 3: Cross multiply
    15,670.63x = 21,625.81 × 8,597.05
  4. Step 4: Simplify right side
    15,670.63x = 185,918,094.30
  5. Step 5: Solve for x
    x = 185,918,094.30/15,670.63
  6. Step 6: Final answer
    x = 11,864.11

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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.