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Finding the Fourth Proportional to 8,700.34, 12,001.08 and 5,341.84

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Solution

The fourth proportional to 8,700.34, 12,001.08 and 5,341.84 is: 7,368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.34 : 12,001.08 = 5,341.84 : x
  2. Step 2: Convert to fraction form
    8,700.34/12,001.08 = 5,341.84/x
  3. Step 3: Cross multiply
    8,700.34x = 12,001.08 × 5,341.84
  4. Step 4: Simplify right side
    8,700.34x = 64,107,849.19
  5. Step 5: Solve for x
    x = 64,107,849.19/8,700.34
  6. Step 6: Final answer
    x = 7,368.43

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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.