Home / 10,516.77-15,784.34-4,280.18

Finding the Fourth Proportional to 10,516.77, 15,784.34 and 4,280.18

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Solution

The fourth proportional to 10,516.77, 15,784.34 and 4,280.18 is: 6,424.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.77 : 15,784.34 = 4,280.18 : x
  2. Step 2: Convert to fraction form
    10,516.77/15,784.34 = 4,280.18/x
  3. Step 3: Cross multiply
    10,516.77x = 15,784.34 × 4,280.18
  4. Step 4: Simplify right side
    10,516.77x = 67,559,716.06
  5. Step 5: Solve for x
    x = 67,559,716.06/10,516.77
  6. Step 6: Final answer
    x = 6,424.00

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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.