Home / 7,487.40-10,332.68-4,130.34

Finding the Fourth Proportional to 7,487.40, 10,332.68 and 4,130.34

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Solution

The fourth proportional to 7,487.40, 10,332.68 and 4,130.34 is: 5,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.40 : 10,332.68 = 4,130.34 : x
  2. Step 2: Convert to fraction form
    7,487.40/10,332.68 = 4,130.34/x
  3. Step 3: Cross multiply
    7,487.40x = 10,332.68 × 4,130.34
  4. Step 4: Simplify right side
    7,487.40x = 42,677,481.51
  5. Step 5: Solve for x
    x = 42,677,481.51/7,487.40
  6. Step 6: Final answer
    x = 5,699.91

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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.