Home / 15,347.80-23,021.70-5,487.40

Finding the Fourth Proportional to 15,347.80, 23,021.70 and 5,487.40

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Solution

The fourth proportional to 15,347.80, 23,021.70 and 5,487.40 is: 8,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.80 : 23,021.70 = 5,487.40 : x
  2. Step 2: Convert to fraction form
    15,347.80/23,021.70 = 5,487.40/x
  3. Step 3: Cross multiply
    15,347.80x = 23,021.70 × 5,487.40
  4. Step 4: Simplify right side
    15,347.80x = 126,329,276.58
  5. Step 5: Solve for x
    x = 126,329,276.58/15,347.80
  6. Step 6: Final answer
    x = 8,231.10

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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.