Home / 17,547.20-26,298.40-7,147.20

Finding the Fourth Proportional to 17,547.20, 26,298.40 and 7,147.20

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Solution

The fourth proportional to 17,547.20, 26,298.40 and 7,147.20 is: 10,711.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,547.20 : 26,298.40 = 7,147.20 : x
  2. Step 2: Convert to fraction form
    17,547.20/26,298.40 = 7,147.20/x
  3. Step 3: Cross multiply
    17,547.20x = 26,298.40 × 7,147.20
  4. Step 4: Simplify right side
    17,547.20x = 187,959,924.48
  5. Step 5: Solve for x
    x = 187,959,924.48/17,547.20
  6. Step 6: Final answer
    x = 10,711.68

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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.