Home / 15,659.80-23,547.30-13,125.40

Finding the Fourth Proportional to 15,659.80, 23,547.30 and 13,125.40

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Solution

The fourth proportional to 15,659.80, 23,547.30 and 13,125.40 is: 19,736.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.80 : 23,547.30 = 13,125.40 : x
  2. Step 2: Convert to fraction form
    15,659.80/23,547.30 = 13,125.40/x
  3. Step 3: Cross multiply
    15,659.80x = 23,547.30 × 13,125.40
  4. Step 4: Simplify right side
    15,659.80x = 309,067,731.42
  5. Step 5: Solve for x
    x = 309,067,731.42/15,659.80
  6. Step 6: Final answer
    x = 19,736.38

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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.