Home / 15,527.70-23,291.55-5,139.45

Finding the Fourth Proportional to 15,527.70, 23,291.55 and 5,139.45

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Solution

The fourth proportional to 15,527.70, 23,291.55 and 5,139.45 is: 7,709.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.70 : 23,291.55 = 5,139.45 : x
  2. Step 2: Convert to fraction form
    15,527.70/23,291.55 = 5,139.45/x
  3. Step 3: Cross multiply
    15,527.70x = 23,291.55 × 5,139.45
  4. Step 4: Simplify right side
    15,527.70x = 119,705,756.65
  5. Step 5: Solve for x
    x = 119,705,756.65/15,527.70
  6. Step 6: Final answer
    x = 7,709.18

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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.