Home / 15,818.52-23,729.34-5,431.08

Finding the Fourth Proportional to 15,818.52, 23,729.34 and 5,431.08

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Solution

The fourth proportional to 15,818.52, 23,729.34 and 5,431.08 is: 8,147.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,818.52 : 23,729.34 = 5,431.08 : x
  2. Step 2: Convert to fraction form
    15,818.52/23,729.34 = 5,431.08/x
  3. Step 3: Cross multiply
    15,818.52x = 23,729.34 × 5,431.08
  4. Step 4: Simplify right side
    15,818.52x = 128,875,943.89
  5. Step 5: Solve for x
    x = 128,875,943.89/15,818.52
  6. Step 6: Final answer
    x = 8,147.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.