Home / 15,533.40-23,315.55-7,215.30

Finding the Fourth Proportional to 15,533.40, 23,315.55 and 7,215.30

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Solution

The fourth proportional to 15,533.40, 23,315.55 and 7,215.30 is: 10,830.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.40 : 23,315.55 = 7,215.30 : x
  2. Step 2: Convert to fraction form
    15,533.40/23,315.55 = 7,215.30/x
  3. Step 3: Cross multiply
    15,533.40x = 23,315.55 × 7,215.30
  4. Step 4: Simplify right side
    15,533.40x = 168,228,687.92
  5. Step 5: Solve for x
    x = 168,228,687.92/15,533.40
  6. Step 6: Final answer
    x = 10,830.13

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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.