Home / 15,631.16-23,435.80-7,835.72

Finding the Fourth Proportional to 15,631.16, 23,435.80 and 7,835.72

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Solution

The fourth proportional to 15,631.16, 23,435.80 and 7,835.72 is: 11,748.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.16 : 23,435.80 = 7,835.72 : x
  2. Step 2: Convert to fraction form
    15,631.16/23,435.80 = 7,835.72/x
  3. Step 3: Cross multiply
    15,631.16x = 23,435.80 × 7,835.72
  4. Step 4: Simplify right side
    15,631.16x = 183,636,230.01
  5. Step 5: Solve for x
    x = 183,636,230.01/15,631.16
  6. Step 6: Final answer
    x = 11,748.09

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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.