Home / 10,356.84-15,518.94-6,455.40

Finding the Fourth Proportional to 10,356.84, 15,518.94 and 6,455.40

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Solution

The fourth proportional to 10,356.84, 15,518.94 and 6,455.40 is: 9,672.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.84 : 15,518.94 = 6,455.40 : x
  2. Step 2: Convert to fraction form
    10,356.84/15,518.94 = 6,455.40/x
  3. Step 3: Cross multiply
    10,356.84x = 15,518.94 × 6,455.40
  4. Step 4: Simplify right side
    10,356.84x = 100,180,965.28
  5. Step 5: Solve for x
    x = 100,180,965.28/10,356.84
  6. Step 6: Final answer
    x = 9,672.93

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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.