Home / 10,269.81-14,147.76-9,769.53

Finding the Fourth Proportional to 10,269.81, 14,147.76 and 9,769.53

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Solution

The fourth proportional to 10,269.81, 14,147.76 and 9,769.53 is: 13,458.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,269.81 : 14,147.76 = 9,769.53 : x
  2. Step 2: Convert to fraction form
    10,269.81/14,147.76 = 9,769.53/x
  3. Step 3: Cross multiply
    10,269.81x = 14,147.76 × 9,769.53
  4. Step 4: Simplify right side
    10,269.81x = 138,216,916.91
  5. Step 5: Solve for x
    x = 138,216,916.91/10,269.81
  6. Step 6: Final answer
    x = 13,458.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.