Home / 15,487.35-21,375.95-10,182.66

Finding the Fourth Proportional to 15,487.35, 21,375.95 and 10,182.66

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Solution

The fourth proportional to 15,487.35, 21,375.95 and 10,182.66 is: 14,054.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.35 : 21,375.95 = 10,182.66 : x
  2. Step 2: Convert to fraction form
    15,487.35/21,375.95 = 10,182.66/x
  3. Step 3: Cross multiply
    15,487.35x = 21,375.95 × 10,182.66
  4. Step 4: Simplify right side
    15,487.35x = 217,663,980.11
  5. Step 5: Solve for x
    x = 217,663,980.11/15,487.35
  6. Step 6: Final answer
    x = 14,054.31

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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.