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Finding the Fourth Proportional to 9,812.63, 14,718.95 and 2,887.13

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Solution

The fourth proportional to 9,812.63, 14,718.95 and 2,887.13 is: 4,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,812.63 : 14,718.95 = 2,887.13 : x
  2. Step 2: Convert to fraction form
    9,812.63/14,718.95 = 2,887.13/x
  3. Step 3: Cross multiply
    9,812.63x = 14,718.95 × 2,887.13
  4. Step 4: Simplify right side
    9,812.63x = 42,495,500.11
  5. Step 5: Solve for x
    x = 42,495,500.11/9,812.63
  6. Step 6: Final answer
    x = 4,330.69

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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.