Home / 10,528.34-15,781.53-4,285.85

Finding the Fourth Proportional to 10,528.34, 15,781.53 and 4,285.85

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Solution

The fourth proportional to 10,528.34, 15,781.53 and 4,285.85 is: 6,424.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.34 : 15,781.53 = 4,285.85 : x
  2. Step 2: Convert to fraction form
    10,528.34/15,781.53 = 4,285.85/x
  3. Step 3: Cross multiply
    10,528.34x = 15,781.53 × 4,285.85
  4. Step 4: Simplify right side
    10,528.34x = 67,637,270.35
  5. Step 5: Solve for x
    x = 67,637,270.35/10,528.34
  6. Step 6: Final answer
    x = 6,424.31

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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.