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Finding the Fourth Proportional to 19,263.64, 28,895.04 and 8,875.39

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Solution

The fourth proportional to 19,263.64, 28,895.04 and 8,875.39 is: 13,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,263.64 : 28,895.04 = 8,875.39 : x
  2. Step 2: Convert to fraction form
    19,263.64/28,895.04 = 8,875.39/x
  3. Step 3: Cross multiply
    19,263.64x = 28,895.04 × 8,875.39
  4. Step 4: Simplify right side
    19,263.64x = 256,454,749.07
  5. Step 5: Solve for x
    x = 256,454,749.07/19,263.64
  6. Step 6: Final answer
    x = 13,312.89

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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.