Home / 10,351.90-15,527.85-9,898.30

Finding the Fourth Proportional to 10,351.90, 15,527.85 and 9,898.30

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Solution

The fourth proportional to 10,351.90, 15,527.85 and 9,898.30 is: 14,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,351.90 : 15,527.85 = 9,898.30 : x
  2. Step 2: Convert to fraction form
    10,351.90/15,527.85 = 9,898.30/x
  3. Step 3: Cross multiply
    10,351.90x = 15,527.85 × 9,898.30
  4. Step 4: Simplify right side
    10,351.90x = 153,699,317.66
  5. Step 5: Solve for x
    x = 153,699,317.66/10,351.90
  6. Step 6: Final answer
    x = 14,847.45

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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.