Home / 15,312.33-21,130.34-8,597.84

Finding the Fourth Proportional to 15,312.33, 21,130.34 and 8,597.84

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Solution

The fourth proportional to 15,312.33, 21,130.34 and 8,597.84 is: 11,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.33 : 21,130.34 = 8,597.84 : x
  2. Step 2: Convert to fraction form
    15,312.33/21,130.34 = 8,597.84/x
  3. Step 3: Cross multiply
    15,312.33x = 21,130.34 × 8,597.84
  4. Step 4: Simplify right side
    15,312.33x = 181,675,133.82
  5. Step 5: Solve for x
    x = 181,675,133.82/15,312.33
  6. Step 6: Final answer
    x = 11,864.63

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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.