Home / 18,298.86-25,252.38-9,915.36

Finding the Fourth Proportional to 18,298.86, 25,252.38 and 9,915.36

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Solution

The fourth proportional to 18,298.86, 25,252.38 and 9,915.36 is: 13,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.86 : 25,252.38 = 9,915.36 : x
  2. Step 2: Convert to fraction form
    18,298.86/25,252.38 = 9,915.36/x
  3. Step 3: Cross multiply
    18,298.86x = 25,252.38 × 9,915.36
  4. Step 4: Simplify right side
    18,298.86x = 250,386,438.56
  5. Step 5: Solve for x
    x = 250,386,438.56/18,298.86
  6. Step 6: Final answer
    x = 13,683.17

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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.