Home / 10,880.34-15,013.58-6,403.10

Finding the Fourth Proportional to 10,880.34, 15,013.58 and 6,403.10

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Solution

The fourth proportional to 10,880.34, 15,013.58 and 6,403.10 is: 8,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.34 : 15,013.58 = 6,403.10 : x
  2. Step 2: Convert to fraction form
    10,880.34/15,013.58 = 6,403.10/x
  3. Step 3: Cross multiply
    10,880.34x = 15,013.58 × 6,403.10
  4. Step 4: Simplify right side
    10,880.34x = 96,133,454.10
  5. Step 5: Solve for x
    x = 96,133,454.10/10,880.34
  6. Step 6: Final answer
    x = 8,835.52

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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.