Home / 10,237.40-15,317.70-9,315.80

Finding the Fourth Proportional to 10,237.40, 15,317.70 and 9,315.80

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Solution

The fourth proportional to 10,237.40, 15,317.70 and 9,315.80 is: 13,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,237.40 : 15,317.70 = 9,315.80 : x
  2. Step 2: Convert to fraction form
    10,237.40/15,317.70 = 9,315.80/x
  3. Step 3: Cross multiply
    10,237.40x = 15,317.70 × 9,315.80
  4. Step 4: Simplify right side
    10,237.40x = 142,696,629.66
  5. Step 5: Solve for x
    x = 142,696,629.66/10,237.40
  6. Step 6: Final answer
    x = 13,938.76

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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.