Home / 15,817.08-21,818.93-10,145.52

Finding the Fourth Proportional to 15,817.08, 21,818.93 and 10,145.52

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Solution

The fourth proportional to 15,817.08, 21,818.93 and 10,145.52 is: 13,995.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,817.08 : 21,818.93 = 10,145.52 : x
  2. Step 2: Convert to fraction form
    15,817.08/21,818.93 = 10,145.52/x
  3. Step 3: Cross multiply
    15,817.08x = 21,818.93 × 10,145.52
  4. Step 4: Simplify right side
    15,817.08x = 221,364,390.69
  5. Step 5: Solve for x
    x = 221,364,390.69/15,817.08
  6. Step 6: Final answer
    x = 13,995.28

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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.