Home / 10,153.40-14,007.60-6,615.32

Finding the Fourth Proportional to 10,153.40, 14,007.60 and 6,615.32

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Solution

The fourth proportional to 10,153.40, 14,007.60 and 6,615.32 is: 9,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.40 : 14,007.60 = 6,615.32 : x
  2. Step 2: Convert to fraction form
    10,153.40/14,007.60 = 6,615.32/x
  3. Step 3: Cross multiply
    10,153.40x = 14,007.60 × 6,615.32
  4. Step 4: Simplify right side
    10,153.40x = 92,664,756.43
  5. Step 5: Solve for x
    x = 92,664,756.43/10,153.40
  6. Step 6: Final answer
    x = 9,126.48

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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.