Home / 9,915.26-14,875.36-2,989.76

Finding the Fourth Proportional to 9,915.26, 14,875.36 and 2,989.76

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Solution

The fourth proportional to 9,915.26, 14,875.36 and 2,989.76 is: 4,485.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.26 : 14,875.36 = 2,989.76 : x
  2. Step 2: Convert to fraction form
    9,915.26/14,875.36 = 2,989.76/x
  3. Step 3: Cross multiply
    9,915.26x = 14,875.36 × 2,989.76
  4. Step 4: Simplify right side
    9,915.26x = 44,473,756.31
  5. Step 5: Solve for x
    x = 44,473,756.31/9,915.26
  6. Step 6: Final answer
    x = 4,485.38

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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.