Home / 10,424.90-14,386.38-5,709.18

Finding the Fourth Proportional to 10,424.90, 14,386.38 and 5,709.18

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Solution

The fourth proportional to 10,424.90, 14,386.38 and 5,709.18 is: 7,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,424.90 : 14,386.38 = 5,709.18 : x
  2. Step 2: Convert to fraction form
    10,424.90/14,386.38 = 5,709.18/x
  3. Step 3: Cross multiply
    10,424.90x = 14,386.38 × 5,709.18
  4. Step 4: Simplify right side
    10,424.90x = 82,134,432.97
  5. Step 5: Solve for x
    x = 82,134,432.97/10,424.90
  6. Step 6: Final answer
    x = 7,878.68

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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.