Home / 10,490.81-15,736.25-3,916.92

Finding the Fourth Proportional to 10,490.81, 15,736.25 and 3,916.92

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Solution

The fourth proportional to 10,490.81, 15,736.25 and 3,916.92 is: 5,875.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.81 : 15,736.25 = 3,916.92 : x
  2. Step 2: Convert to fraction form
    10,490.81/15,736.25 = 3,916.92/x
  3. Step 3: Cross multiply
    10,490.81x = 15,736.25 × 3,916.92
  4. Step 4: Simplify right side
    10,490.81x = 61,637,612.77
  5. Step 5: Solve for x
    x = 61,637,612.77/10,490.81
  6. Step 6: Final answer
    x = 5,875.39

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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.