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Finding the Fourth Proportional to 8,407.40, 11,602.02 and 5,265.32

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Solution

The fourth proportional to 8,407.40, 11,602.02 and 5,265.32 is: 7,266.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,407.40 : 11,602.02 = 5,265.32 : x
  2. Step 2: Convert to fraction form
    8,407.40/11,602.02 = 5,265.32/x
  3. Step 3: Cross multiply
    8,407.40x = 11,602.02 × 5,265.32
  4. Step 4: Simplify right side
    8,407.40x = 61,088,347.95
  5. Step 5: Solve for x
    x = 61,088,347.95/8,407.40
  6. Step 6: Final answer
    x = 7,266.02

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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.