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Finding the Fourth Proportional to 7,037.76, 9,707.88 and 4,647.77

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Solution

The fourth proportional to 7,037.76, 9,707.88 and 4,647.77 is: 6,411.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,037.76 : 9,707.88 = 4,647.77 : x
  2. Step 2: Convert to fraction form
    7,037.76/9,707.88 = 4,647.77/x
  3. Step 3: Cross multiply
    7,037.76x = 9,707.88 × 4,647.77
  4. Step 4: Simplify right side
    7,037.76x = 45,119,944.89
  5. Step 5: Solve for x
    x = 45,119,944.89/7,037.76
  6. Step 6: Final answer
    x = 6,411.12

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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.